Talk:Polio/Archive 6

Archive 1

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Archive 6

Requested move 28 February 2019

The following is a closed discussion of a requested move. Please do not modify it. Subsequent comments should be made in a new section on the talk page. Editors desiring to contest the closing decision should consider a move review after discussing it on the closer's talk page. No further edits should be made to this section.

The result of the move request was: Moved. (non-admin closure)  samee  converse  17:10, 7 March 2019 (UTC)

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Poliomyelitis → Polio – Since the 1970s, "polio" is the more common usage among average English speakers. bd2412 T 18:18, 28 February 2019 (UTC)

• Support move. The short name has long since become the common name. ONR (talk) 20:36, 28 February 2019 (UTC)
• Previous discussions at Talk:Poliomyelitis/Archive 5#Requested move 23 October 2015 and Talk:Poliomyelitis/Archive 3#Requested move. Dekimasuよ! 21:14, 28 February 2019 (UTC)
  • I did not know that there were previous discussions, but it it not surprising. However, I would note that the previous outcomes have been inconsistent with what appears to be the more common practice for common childhood diseases. We have Measles (not Rubeola) and Chickenpox (not Varicella). bd2412 T 22:31, 28 February 2019 (UTC)
• Support per WP:COMMONNAME. Rreagan007 (talk) 21:33, 28 February 2019 (UTC)
• Support per WP:COMMONNAME. Tornado chaser (talk) 22:10, 28 February 2019 (UTC)
• Support per WP:CONCISE and also common name Red Slash 23:06, 28 February 2019 (UTC)
• Support per all above. Good catch. -- Netoholic @ 15:41, 2 March 2019 (UTC)
• Support Common name. Joefromrandb (talk) 03:46, 4 March 2019 (UTC)

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The above discussion is preserved as an archive of a requested move. Please do not modify it. Subsequent comments should be made in a new section on this talk page or in a move review. No further edits should be made to this section.

Epidemiology section

I think this section could use some work. I get the distinct impression it was written several years ago and then just individual instances added on as they happened, inconsistently. A reevaluation from 2019 might be in order. Regarding Pakistan/Afghanistan, the end to decreasing case counts in both suggest less of a tone of inevitability is in order, while the numerous outbreaks of emergence of cVDPV in Laos, Indonesia, Papua New Guinea, Syria, Somalia, etc., etc. changes the status on several continents (and raises the question of how best to describe the whole cVDPV phenomenon). In the section talking about Syria, we should probably also mention the presence of poliovirus in Egypt and Israel, in the years before it showed up in Syria, even though it was only picked up in environmental sampling. Personally, I think the section needs a significant rewrite, but given it is a Featured Article, I am raising it here rather than just doing it. Agricolae (talk) 16:58, 10 March 2019 (UTC)

Semi-protected edit request on 25 May 2019

1. Please change

This is the last remaining region with wild polio cases. Both major sides of the Afghan civil war support polio vaccination[122] and polio rates are declining rapidly in Afghanistan, with 19 cases in 2015[100][116] and 13 in 2016.[123]

to

This is the last remaining region with wild polio cases. Both major sides of the Afghan civil war support polio vaccination[122], but after declining rapidly, polio rates are increasing in Afghanistan, with 19 cases in 2015[100][116], 13 in 2016[123], 14 in 2017, and 21 in 2018.

because

the existing article is missing 2017 and 2018 and because it incorrectly says it is decreasing when it hasn't decreased in a few years.

2.

Please change

In Pakistan, there were 53 cases in 2015 - the highest number for any country,[100][116] 20 in 2016[123] and 9 in 2018.[124]

to

In Pakistan, there were 53 cases in 2015 - the highest number for any country,[100][116] 20 in 2016[123], 8 in 2017, and 12 in 2018.

because

the existing article was missing 2017 47.139.45.69 (talk) 19:28, 25 May 2019 (UTC)

 Done Ruslik_Zero 20:20, 25 May 2019 (UTC)

References

Semi-protected edit request on 1 June 2019

1. Please change

In 2018, there were 33 cases of wild polio and 103 cases of vaccine-derived polio

to

In 2018, there were 33 cases of wild polio and 104 cases of vaccine-derived polio

because

https://extranet.who.int/polis/public/CaseCount.aspx and http://polioeradication.org/polio-today/polio-now/this-week/ both say 104.

2. Please change

In 2018, the disease was only spread between people in Afghanistan and Pakistan

to

In 2018, the wild disease was only spread between people in Afghanistan and Pakistan

because the circulating vaccine-derived disease spread between people in other countries 47.139.42.28 (talk) 23:55, 1 June 2019 (UTC) 47.139.42.28 (talk) 23:55, 1 June 2019 (UTC)

 Done Ruslik_Zero 12:49, 2 June 2019 (UTC)

Suggestion to submit to the WikiJournal of Medicine

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T.Shafee(Evo&Evo)^talk 12:04, 6 July 2019 (UTC)

Southeast Asia is not South Asia

India and the other countries of South Asia have mistakenly been put beneath the "Southeast Asia" section. Please make a new section for South Asia. — Preceding unsigned comment added by RoseChasm (talk • contribs) 16:00, 3 April 2020 (UTC)

Proposed merge of 2019–20 Philippines polio outbreak into Polio

The following discussion is closed. Please do not modify it. Subsequent comments should be made in a new section. A summary of the conclusions reached follows.

The result of this discussion was not merged. JHunterJ (talk) 14:33, 26 August 2020 (UTC)

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Despite being kept after an AfD, it should've had a more clearer consensus since the original nominator's rationale has a point. WP:NOTNEWS. —hueman1 (talk • contributions) 14:59, 17 June 2020 (UTC)

• Oppose, for now. The outbreak is notable at a national level to the Philippines, and gave rise to a domestic and international response. I think it is notable enough to the health history of the Philippines that it should not be merged. --Tom (LT) (talk) 00:16, 18 July 2020 (UTC)

The discussion above is closed. Please do not modify it. Subsequent comments should be made on the appropriate discussion page. No further edits should be made to this discussion.

Please add good news about Africa

Suggested text: On August 25, 2020, four years after the last recorded cases of wild polio in northern Nigeria, the Africa Regional Certification Commission (ARCC) certified that the continent is now free of the virus. Source: https://www.theguardian.com/global-development/2020/aug/25/africa-to-be-declared-free-of-wild-polio-after-decades-of-work — Preceding unsigned comment added by 82.35.195.134 (talk) 09:57, 31 August 2020 (UTC)

Semi-protected edit request on 26 September 2020

Please update Epidemiology section as follows: 1. Replace map and table of "Reported polio cases in 2018" with the one for 2019 found at https://en.wikipedia.org/wiki/Polio_eradication#2019 2. Add 2019 numbers (again, copy the numbers and the citations from https://en.wikipedia.org/wiki/Polio_eradication#2019) to the end of the sentence "In 2015, cases decreased to 98 and further decreased in 2016 to 37 wild cases and 5 circulating vaccine-derived cases, but increased in 2018 to 33 wild cases and 103 circulating vaccine-derived cases." 3. In Afghanistan and Pakistan subsection (you can see where this is going) add 2019 numbers and citations, again copied from https://en.wikipedia.org/wiki/Polio_eradication#2019, to " 19 cases in 2015,[86][98] 13 in 2016,[99] 14 in 2017,[78] and 21 in 2018[79]" and "20 in 2016,[99] 8 in 2017[78] and 12 in 2018.[79][100] ", 47.139.41.188 (talk) 17:34, 26 September 2020 (UTC)

 Done Ruslik_Zero 20:58, 27 September 2020 (UTC)

Biology

This is biology, not sociology, so infection depends on the patient's biology, not their sociology. Please replace all instances of 'gender' with 'sex'. — Preceding unsigned comment added by 77.96.251.53 (talk) 17:50, 28 December 2019 (UTC)

Epidemiology and transmission are not limited to biology.

If reliable sources are discussing gender, sex, hairstyle, favorite ice cream flavor, political affiliation, etc.; the article should discuss gender, sex, hairstyle, favorite ice cream flavor, political affiliation, etc. - SummerPhD^v2.0 21:14, 9 May 2020 (UTC)

And did you actually check on the instances of gender in the article and verify that both they were cited to a reliable source, and that the article accurately reflects what the source says? My guess is no, since you mentioned epidemiology and transmission, and the sole reference to either sex or gender in the article is not in reference to either one of those things. It's also an offline source, and therefore I have no idea which of those words it used, but I do note that at that time, it was still more common than it is presently to use the words interchangeably or to use gender in order to avoid 'unsavoury' connotations. And if it's a question of synonyms, we aren't in any way bound to used the exact same terms verbatim that sources use (and we - OFTEN - do not). Anyway, I did not change it, because in the specific context, neither word over the other has any effect whatsoever on the outcome of the statement being made. Firejuggler86 (talk) 06:15, 8 October 2020 (UTC)

Semi-protected edit request on 4 March 2021

The statement that polio was exacerbated by better sanitation needs to be changed to state that 'to date unproven theories hypothesize that better sanitation contributed its spread in the 20th Century.' There are many disagreements on this point as the worst hit areas globally and within the US were the poorest, most crowded, and least sanitary ones. The research on this point is poor and has not considered many other factors such as the population explosion, increased urbanizations, and even the possible mutation of the virus. At least qualify it as a theory. Thanks. 153.156.163.54 (talk) 08:45, 4 March 2021 (UTC)

 Not done: It's not clear exactly what changes you'd like to be made, and you'll need reliable sources to back up your claims here. Elliot321 (talk | contribs) 09:04, 4 March 2021 (UTC)

Semi-protected edit request on 18 July 2021

The table "Reported polio cases in 2019" under "Epidemiology" has a major error. Pakistan shows 1 wild case for the year 2019; wild case number should be 146. Pakistan should also be moved from 2nd line of table data to 1st line to maintain sorting by most wild cases.

The cited WHO source for the data shows it as 147 cases and the Polio This Week citation shows 146 cases. The total line, 175, agrees with the Polio This Week citation. The 146 number is also used in the accompanying text.

Data for 2020 is now available from the sources cited, but integrating that would require a more substantive edit to the entire Epidemiology section. — Preceding unsigned comment added by Makosuke (talk • contribs)

 Done. ‑‑Volteer1 (talk) 14:51, 24 July 2021 (UTC)

Semi-protected edit request on 26 July 2021

The table at the beginning of the article is captioned “Outcomes of poliovirus infection” but per the cited source it should be “Outcomes of poliovirus infection in children”. I noticed this because the percentages seemed suspiciously not scary and indeed the risks of polio increase with age.

(It's unfortunate that the source does not define “children” and doesn't say what particular study these numbers are from. Maybe this table should just be removed since what it is talking about exactly is not clear.) 129.199.129.11 (talk) 11:10, 26 July 2021 (UTC)

 Done first case. maybe it can also be removed, but i'd like to wait for other feedback first before doing so   melecie   t 13:00, 26 July 2021 (UTC)

Yearly Polio cases (Infobox)

I think that the "Frequency" section of the Infobox could probably be updated to display the amount of polio cases from 2020, because it could be more accurate. Realmaxxver (talk) 22:13, 6 August 2021 (UTC)

Semi-protected edit request on 14 August 2021

Please remove

children walking with canes at a young age

and add

young children walking with canes

Thank you. 174.206.39.241 (talk) 21:55, 14 August 2021 (UTC)

 Done It took me an embarrassingly long time to realize that "CHILDREN walking with canes at a YOUNG AGE" is repetitive. That aside, thank you! —Sirdog9002 (talk) 02:43, 15 August 2021 (UTC)

Neil Young

Here is an explanation (by a doctor with polio herself) of how the song "Helpless" refers to Neil Young's polio http://nonprofits.accesscomm.ca/polio/Neil%20Young.html Also discussed on TWiV, https://www.youtube.com/watch?v=UKruriG1qVQ?t=2842 Vincent Racaniello, the moderator of TWiV, sequenced the poliovirus and did other work on it. --Nbauman (talk) 22:14, 30 January 2022 (UTC)

Reason for Dramatic Decline in Frequency

I understand that a project launched in the mid-1980s by Rotary International, which became a partner with the World Health Organization, led to world-wide immunization efforts and a dramatic decline in frequency. Pakistan, Afghanistan are the only two countries left in the world where the poliovirus continues to threaten the health and well-being of children. There is no mention of the this extraordinary effort in the article. PlaysInPeoria (talk) 23:39, 11 October 2021 (UTC)

The dramatic drop in polio diagnosis was due to the diagnostic criteria for polio officially changing from 7 days of paralysis to 60 days of paralysis.

The term poliomyelitis was first used to describe arsenic poisoning, and so when arsenic stopped being used as a pesticide cases dramatically dropped.

source

https://archive.org/download/crossref-pre-1909-scholarly-works/10.1016%252Fs0140-6736%252802%252936064-1.zip/10.1016%252Fs0140-6736%252802%252936428-6.pdf

There is zero evidence that polio is caused by a virus, notice how this article fails to cite a single science source that supports this claim.

But since wikipedia is not about truth and instead about spreading the lies that the majority believes, this wikipedia will likely spread false information long into the future. 24.9.67.157 (talk) 15:36, 20 April 2022 (UTC)

Redrafting some sections

As this article is protected, I am notifying the community of my intention to tidy it up a bit. I do not intend to change the sources or make any substantial changes to the content.

• Example 1 - the lead paragraph contains lots of statisitcs about symptoms. This kind of detail is not appropriate in the first paragraph, and will be moved to the section covering symptoms. I will replace with a more general (and shorter) description of symptoms in the first paragraph.
• Example 2 - Paragraph 3 also contains detailed statistics expressed in a confusing way - these are repeated in the "Epidemiology" section. These could be rephrased or condensed.

Bob (talk) 13:11, 24 June 2022 (UTC)

---

poliomyelitis

Gangrene 213.91.208.210 (talk) 23:27, 4 July 2022 (UTC)

Overuse of a single source

There are many claims made in the first few paragraphs that cite the same source a textbook, but if you read that text book you see that these claims are not actually supported by science based evidence in the text book.

It would be useful to cite more high quality sources as the cause of polio and its means of transmission is not settled. — Preceding unsigned comment added by 24.9.66.63 (talk) 15:55, 22 February 2022 (UTC)

You make a good point but are flawed in your beliefs about the purpose of wikipedia.

Wikipedia is not meant to present the truth, or promote science based evidence.

Wikipedia's openly admits to spreading false information and does not care about the scientific evidence for any subject.

Wikipedia promotes the current beliefs of the masses, regardless of evidence or science based evidence that supports the current beliefs. 24.9.67.157 (talk) 16:16, 20 April 2022 (UTC)

It seems to me that the cause and method of transmission are understood.

• 1908—In Vienna, Karl Landsteiner, MD (1868-1943), and Erwin Popper, MD (1879-1955), announced that the infectious agent in polio was a virus.
• The virus was first imaged by electron microscopy in the 1950s.
• Poliovirus was one of the earliest genomes to be sequenced in full, with two groups publishing serotype one sequences in 1981. Jorgensen, David; Pons-Salort, Margarita; Shaw, Alexander G; Grassly, Nicholas C (1 July 2020). "The role of genetic sequencing and analysis in the polio eradication programme". Virus Evolution. 6 (2): veaa040. doi:10.1093/ve/veaa040. Retrieved 22 July 2022.
• Polio is spread when the stool of an infected person is introduced into the mouth of another person through contaminated water or food (fecal-oral transmission). Oral-oral transmission by way of an infected person's saliva may account for some cases. Seems that's what the Wikipedia article indicates.

Please be more specific and provide some of these "high quality sources." Maybe we'll learn something. Please sign your comments while you're at it if you want to engage as a member of the community.

As to the second unsigned comment, "Wikipedia" is a community of volunteers from all walks. No one pays me to be here. We all get edited. Easier to avoid taking it personally. --Catrachos (talk) 19:23, 22 July 2022 (UTC)

Vaccine derived poliomyelitis (VDPV)

There are now 3 cities in which VDPV has been detected - London, New York, and Jerusalem. It seems to be a growing issue, generally ascribed to under-vaccinated populations.

References to this are scattered in variuos locations across the article.

We should create a new section dedicated to VDPV and consolidate.

https://www.reuters.com/business/healthcare-pharmaceuticals/why-has-polio-been-found-london-new-york-jerusalem-how-dangerous-is-it-2022-08-15/

Bob (talk) 18:57, 20 August 2022 (UTC)

Polio case reported in New York in July 2022

The article says that the last case of polio in the Americas was in 1991 (Peru). We may want to add that the 1991 case was the last known naturally occurring case of polio in the Americas (if that is true). In addition to a case this month, there was a 2013 case in the US of a 7-month-old who had recently moved from India. Certainly there must be other non-wild cases in the whole of the Americas.

"New York State Department of Health and Rockland County Department of Health Alert the Public to A Case of Polio In the County". The Official Website of New York State. New York State Department of Public Health. 21 July 2022. Retrieved 21 July 2022.

Described as a revertant rather than wild strain of the virus. Following text from the article:

"In this case, sequencing performed by the Wadsworth Center – NYSDOH's public health laboratory – and confirmed by CDC showed revertant polio Sabin type 2 virus. This is indicative of a transmission chain from an individual who received the oral polio vaccine (OPV), which is no longer authorized or administered in the U.S., where only the inactivated polio vaccine (IPV) has been given since 2000. This suggests that the virus may have originated in a location outside of the U.S. where OPV is administered, since revertant strains cannot emerge from inactivated vaccines."

I think it would be useful to divide the Americas into regions (North America, Central America, Caribbean, South America) and provide years for last known naturally occurring case in all four regions. Here are last wild type polio cases in the Americas by region:

• The last naturally occurring case in Central America was in Guatemala in 1990.
• The last naturally occurring case in the Caribbean nations was in Haiti in 1989.
• The last naturally occurring case in South America was in Peru in August 1991.
• The last naturally occurring case in North America was in Mexico in 1990.

Source: Saloni Dattani, Fiona Spooner, Sophie Ochmann and Max Roser (2022). "Polio". Our World in Data. Retrieved 22 July 2022.{{cite web}}: CS1 maint: multiple names: authors list (link) --Catrachos (talk) 17:54, 22 July 2022 (UTC)

There is a public health emergency now declared in New York as ??? Cases have been found in sewage. (It made the national news tonight in Australia and needs to b included) Tuesdayal (talk) 09:18, 10 September 2022 (UTC)

Yes indeed. wastewater findings in NYC, and just about every surrounding county: Nassau, Suffolk, Rockland, Orange, Sullivan. Not sure about Westchester, or whether their wastewater is processed with NYC. "These environmental findings provide evidence that the unvaccinated individual Rockland County resident with paralytic polio contracted the virus through local—not abroad or international—transmission and raise concerns about the potential for community spread of poliovirus that can cause paralysis in these communities." In other words, it's been in circulation, and we're not sure for how long. They're not doing mass testing or contact tracing that I know of. As a resident of Orange County NY I'm trying to keep tabs on it — it's concerning. The Crisses (talk) 14:51, 10 September 2022 (UTC)

IVP vs OPV and eradication

There appears to be a substantial error in the understanding of Oral Polio Vaccine (OPV) vs Injected Polio Vaccine (IPV). Both vaccines induce immunity to paralytic polio however only the oral polio vaccine effectively reduces person to person transmission. This is due to its mode of action (inducing both mucosal and humoral immunity), while IPV only induces humoral immunity and does not effectively disrupt chains of transmission. The current article makes the claim "Two types of vaccine are used throughout the world to combat polio. Both types induce immunity to polio, efficiently blocking person-to-person transmission of wild poliovirus, thereby protecting both individual vaccine recipients and the wider community (herd immunity)" and provides a link to an article. The article linked is from 1999 and is no longer considered to accurately reflect the consensus effectiveness of IPV in preventing chains of transmission. Numerous other sources online contradict this information (including the US CDC and the global polio eradication effort). Here are two easily accessible links contradicting the claim:

https://www.cdc.gov/vaccines/vpd/polio/hcp/vaccine-derived-poliovirus-faq.html https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8572547/ 4.71.37.240 (talk) 00:51, 8 November 2022 (UTC)

@4.71.37.240 Your first citation refers exclusively to cVDPV, not to epidemic polio. The second merely says " less effective ". Please check WP:OR and WP:SECONDARY for guidance on the type of evidence that should be used as source material. Bob (talk) 21:15, 6 December 2022 (UTC)

FA-level prose

This series of edits is going to need some prose work; they are not improvements over the prose that was there. One sentence, which was clear before, now bounces the reader to a later section, all use incorrect upper case where Wikipedia's house style does not, and there is unnecessary verbosity and an unnecessary technical level. @Graham Beards, Colin, Ajpolino, and Spicy: are you watchlisting this highly viewed Featured article ? SandyGeorgia (Talk) 13:10, 6 April 2023 (UTC)

Continued below at #Safety of oral polio vaccine. SandyGeorgia (Talk) 16:43, 6 April 2023 (UTC)

Safety of oral polio vaccine

The article currently contains the following text, introduced by  Justito (talk)

• "The oral polio vaccine (OPV) while highly effective, has the safety disadvantage that it consists of a live polio virus. To mitigate the safety risks, the virus is attenuated so that it rarely causes illness in vaccinees. In rare instances where the virus in the OPV is accidentally insufficiently attenuated, it can cause Vaccine-Associates Paralytic Polio (VAPP) in vaccinees and those to whom they transmit the virus." https://www.cdc.gov/vaccines/vpd/polio/hcp/vaccine-associated-paralytic-polio-faq.html

The cited source does not contain any mention of accidental under-attenuation. I am unable to find a source supporting this assertion so it seems to be speculation and violates wp:or. Other sources make it clear that VAPP may occur after community transmission of the virus with the risk that it may revert to a disease causing strain.

I have attempted to correct the text but my edit was reverted.

https://www.cdc.gov/vaccines/vpd/polio/hcp/vaccine-derived-poliovirus-faq.html

https://polioeradication.org/polio-today/polio-prevention/the-virus/vaccine-derived-polio-viruses/

Bob (talk) 16:27, 6 April 2023 (UTC)

As I mentioned above at #FA-level prose, this is poor content in more ways than one, including that which you mention. I agree with removing this series of edits, and want to remind others that this is a Featured article; discuss, don't edit war, slow and steady wins the race. I support a revert to this version, with more careful and consensual editing from that point. SandyGeorgia (Talk) 16:42, 6 April 2023 (UTC)

@Robertpedley From a brief further look, it looks like you’re right that my speculation isn’t supported by WP:RS. I will edit to reflect following CDC Pinkbook text after I post this (the exerpt is a bit lengthy but gives us useful background IMO).

VAPP and cVDPV are distinct. VAPP occurs directly in the vaccinee or his close contacts. cVDPV occurs starting only after 12 - 18 of virus transmission and mutation.

See my CDC cites already in text, the following CDC Pinkbook text and this Polio Global Eradication Project page:

“OPV:

“VAPP Risk:

“For every million vaccinations with OPV, there are 3-4 children who experience vaccine-associated paralytic polio (VAPP) cases — which cause polio-like symptoms in the child vaccinated — per million births. VAPP cannot spread between individuals, so an outbreak response is not necessary.

https://polioeradication.org/wp-content/uploads/2018/07/GPEI-cVDPV-Fact-Sheet-20191115.pdf

CDC Vaccine Pinkbook:

“From 1980–1999, 162 confirmed cases of paralytic poliomyelitis were reported in the United States, an average of 8 cases per year. [Over the entire 20 year period,] six cases were caused by wild poliovirus acquired outside the United States and two cases were classified as indeterminant (no poliovirus isolated from samples obtained from the patients, and patients had no history of recent vaccination or direct contact with a vaccine recipient). The remaining 154 (95%) cases were vaccine-associated paralytic polio (VAPP) caused by the Sabin poliovirus strains contained in OPV vaccine.

“The nearly exclusive use of tOPV vaccine led to elimination of wild poliovirus from the United States in less than 20 years. However, one case of VAPP occurred for every 2 to 3 million doses of tOPV vaccine administered. The burden of VAPP in industrialized countries resulted in progressive discontinuation of OPV vaccine.

“In 1996, the Advisory Committee on Immunization Practices (ACIP) recommended an increase in use of IPV through a sequential schedule of IPV followed by tOPV to reduce the occurrence of VAPP. The sequential schedule eliminated VAPP among vaccine recipients by producing humoral immunity to polio with inactivated polio vaccine prior to exposure to live vaccine virus. Since tOPV was still used for the third and fourth doses, a risk of VAPP would continue to exist among contacts of vaccine recipients, who were exposed to live vaccine virus in the stool of vaccine recipients.

“VAPP occurs very rarely after administration of OPV vaccine. The mechanism of VAPP is believed to be a mutation, or reversion, of the attenuated vaccine poliovirus to a more neurotropic form. Reversion is believed to occur in almost all vaccine recipients, but it only rarely results in paralytic disease. The paralysis that results is identical to that caused by wild poliovirus. IPV vaccine does not contain live virus, so it cannot cause VAPP…

“VDPVs are genetically divergent forms of vaccine strains. VDPVs develop through prolonged replication of vaccine strains contained in OPV in an immunodeficient indi­vidual or in a community with poor vaccination coverage and have re-acquired the neurovirulence and transmissibility of wild poliovirus. The risks of paralysis and manifestations of paralysis caused by VDPVs are similar to those of wild poliovirus of the same serotype. Outbreaks of circulating VDPVs have been responsible for more than 1,200 cases of paralytic polio during 2000–2019 and have exceeded the wild poliovirus case count since 2017.

https://www.cdc.gov/vaccines/pubs/pinkbook/polio.html JustinReilly (talk) 18:37, 6 April 2023 (UTC)

I have reverted per this discussion the one above it; User:Justito, please slow down and gain consensus for edits to a Featured article. Your edits are not improving the article. Besides the other issues mentioned, you are introducing UNDUE weight via section headings. This article should reflect the weight of broad high-quality secondary reviews. SandyGeorgia (Talk) 19:37, 6 April 2023 (UTC)

OK. I didn’t realize this was a feature article bc I’m using the mobile version which doesn’t alert you and I didn’t know what you meant by “FA.” And didn’t know there were different guidelines for them. Back at some point to discuss substance… JustinReilly (talk) 22:31, 6 April 2023 (UTC)

Justito while it's surprising that someone who has edited since 2009 does not know what an WP:FA is or how to determine the assessment level of an article, more significantly, if you are saying that Template:Editnotices/Page/Polio has not displayed on mobile every time you have edited, that is a problem. See WP:WIAFA-- although most of your edits wouldn't stand on any article (not just an FA). SandyGeorgia (Talk) 15:14, 7 April 2023 (UTC)

Agree with Sandy's reversion here, the edits introduced weasel-y material that was not NPOV imo — Shibbolethink ^{(♔ ♕)} 15:08, 7 April 2023 (UTC)

% of asymptomatic cases in the lead.

The lead paragraph states approxiamately 70% of cases are symptomatic however the source for that information says Approximately 70% of all polio infections in children are asymptomatic I could not find information on the number of cases in general that are asymptomatic. Could someone please revert this Watch Atlas791 (talk) 00:54, 16 April 2023 (UTC)

Fixed it. Bob (talk) 19:49, 16 April 2023 (UTC)