What do these cases really tell us about the virus, which hasn't spread in the UK for decades?
, which the company says is a "standard protocol measure" appearing on any drug trial in case it should contain a live component.
The weakened virus in the live vaccine is extremely unlikely to cause any problems. The concern is it might - over time as it is passed from person to person - become more like the original wild polio virus that causes disease.It is generally only in under-vaccinated populations that it spreads for long enough periods to evolve in worrying ways, Prof Paul Hunter, a public health and infectious diseases specialist at the University of East Anglia, explains.
London has lower vaccination rates than the national average - especially in certain areas - and experts believe this may have allowed the weakened version of the virus from the vaccine to spread and evolve.She acknowledged it might be confusing to some people that a vaccine was the solution to tackling a strain of polio that came from a vaccine.
Remember, the jab given in the UK - which health leaders are recommending people check they are up-to-date with - is not live and cannot infect anyone.It's become a regular tactic from some accounts and social media groups to jump on any news of illness and link it to Covid vaccines.
Malaysia Latest News, Malaysia Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Polio Virus Has Been Detected in London's SewageA type of poliovirus derived from vaccines has been detected in London sewage samples, the World Health Organization and British health officials said Wednesday, adding that more analysis was underway.
Read more »
Poliovirus Found in U.K., Health Officials Urge Polio ImmunizationsPoliovirus Found in London, U.K., Health Officials Urge Polio Immunizations
Read more »
Polio: What is it and how does it spread?What is polio and how can you protect yourself from it?
Read more »
US aims to boost virus testing with 142 monkeypox cases confirmedPreviously, testing had largely been confined to public health labs, which combined have a capacity of about 8,000 tests per week.
Read more »
US aims to boost virus testing with 142 monkeypox cases confirmedPreviously, testing had largely been confined to public health labs, which combined have a capacity of about 8,000 tests per week.
Read more »
US aims to boost virus testing with 142 monkeypox cases confirmedPreviously, testing had largely been confined to public health labs, which combined have a capacity of about 8,000 tests per week.
Read more »