1580-1350 BC
An Egyptian stele portrays a priest with a withered leg, suggesting highly infectious polio has existed for thousands of years.
An Egyptian stele portrays a priest with a withered leg, suggesting highly infectious polio has existed for thousands of years.
1916 AD
A polio epidemic on New York, USA.
The 1900s saw epidemics of polio worldwide
A polio epidemic on New York, USA.
The 1900s saw epidemics of polio worldwide
2020
After extensive global vaccination programs, only a handful of wild cases can be found. Africa is declared free of wild poliovirus transmission.
Regions that include 90% of the world's population are now free of wild polio.
After extensive global vaccination programs, only a handful of wild cases can be found. Africa is declared free of wild poliovirus transmission.
Regions that include 90% of the world's population are now free of wild polio.
Herd immunity without the use of suitably effective vaccines?
It's a fanciful unicorn.
Protect yourself from #COVID19 if it's spreading in your community.
It's a fanciful unicorn.
Protect yourself from #COVID19 if it's spreading in your community.
Stay home. Stay safe.
who.int/emergencies/di…
who.int/emergencies/di…
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