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1/ Fascinating insights from Iquitos, Loreto Region, Peru. #COVID19 #COVID

1) They have achieved the 70% seroprevalence threshold for herd immunity.

Cases have dropped now in the region, as expected.

@VincentRK @paimadhu
2/ Population of Iquitos is 470,000.
71% seroprevalence, the highest reported so far i~ 333000 cases

But confirmed cases are only 14711 (4.4%)

This means even assuming major undercounting, a lot of COVID, probably 80%, as expected is asymptomatic. @DrSidMukherjee
4/ Deaths due to COVID in Iquitos is ~2000.

The Infection Fatality Rate (IFR) is ~0.7%.

Case fatality rate (CFR) for confirmed symptomatic cases was ~14%

CFR in Iquitos is similar to the mortality seen with symptomatic COVID in hotspots that got overwhelmed (NY, Lombardy)
5/ Not sure what test was used to measure seroprevalence. 70% is highest ever reported - serology tests vary widely in specificity
6/ I really wanted to visit Iquitos on a trip to Peru 5 years ago - a certain individual traveling with me didn’t want to get the yellow fever vaccine @VincentRK
7/ Picture from Peru exactly 5 years ago today. My phone brought it up in Memories - and prompted this Peru related thread
One of my favorite moments in Peru was coming across this in the main square in downtown Lima @iamsrk ❤️@rema_mathew
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Keep Current with Priya Sampathkumar

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