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According to https://en.wikipedia.org/wiki/COVID-19_pandemic_in_Angola the first two cases were confirmed Mar 21. Mar 24 schools closed. Mar 29 two Covid-19 deaths. According to https://reliefweb.int/report/angola/unicef-angola-covid-19-response-interventions-issue-2 on Mar 27 Angola activated a state of emergency later extendeduntil extended until Apr 26.
Following the schools closing, a week later there is a sustained increase in the IPDV for 2-3 weeks for www.portalongop.co.ao and www-05.nexus.ao.
To attempt to get a better signature for such a sustained increase we took two adjacent windows of 14 days, averaged the data in each window, and slide the windows forward in time we can look at the average (avg), standard deviation (std for each window and compare their difference as a function of the date of the start of the more recent window. Doing this for for www.portalangop/co.ao we get the chart below:
Cameroon
Cameroon: First confirmed case March 6th, 2nd case March 6th, 1st Death March 24th. See https://en.wikipedia.org/wiki/COVID-19_pandemic_in_Cameroon for more information. There is no mention of a lockdown or closing of educational, religious establishments etc.
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