
This meme makes the issue seem so clear.
And yet the fact that we have such a short memory works in both directions when it comes to polio vaccines.
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In April 1955 more than 200 000 children in five Western and mid-Western USA states received a polio vaccine in which the process of inactivating the live virus proved to be defective. Within days there were reports of paralysis and within a month the first mass vaccination programme against polio had to be abandoned. Subsequent investigations revealed that the vaccine had caused 40 000 cases of polio, leaving 200 children with varying degrees of paralysis and killing 10.
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Of course, they eventually came up with an effective polio vaccine.
But the polo vaccines offer lifelong (or at least near-lifelong) immunity.
The covid vaccines seem to last for ~6 months.
The polio vaccines also offer sterilizing immunity, preventing infection and protecting against disease and transmission.
The covid vaccines are quite effective at reducing illness and hospitalization. But it’s becoming evident that they do not prevent infection and transmission of the virus.
Another way in which the polio / covid analogy falls apart is that polio vaccines were administered during polio epidemics. In other words: regional outbreaks. And they were administered (and continue to be administered) in areas where no polio is present.
By contrast, the covid vaccines are being administered during a pandemic. Covid is everywhere, all around the world, and the goal of creating herd immunity in specific populations with a non-sterilizing vaccine is a totally different scenario. So far it does not seem to be anywhere near ending the crisis, even in the countries with the highest vaccination rates in the world.
Meanwhile, the WHO have stated that we are never going to end the pandemic by vaccinating people in developed countries while ignoring people in the developing world. The people who need the vaccine the most are the ones in crowded slums with poor sanitation, and it is from those countries that the next variants will continue to emerge.
P.S. One last thing: polio ravages children. Covid does not. Please think extra carefully before vaccinating children for something that does not cause them significant harm.
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Sources:
How America’s First Polio Vaccine Led to a Growing Vaccine Crisis | NIH
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1383764/
Polio Vaccine Effectiveness and Duration of Protection | CDC
https://www.cdc.gov/vaccines/vpd/polio/hcp/effectiveness-duration-protection.html
WHO asks wealthy nations to hold off on Covid vaccine boosters at least through September | WHO
https://www.cnbc.com/2021/08/04/who-calls-for-moratorium-on-covid-vaccine-boosters-at-least-through-september.html