Published on all Inquirer platforms on April 27, 2021.
In the last few days, some statisticians and data scientists I follow on Twitter have been raising a warning flag about Department of Health (DOH) statistics. Yesterday, the total number of COVID-19 cases recorded since the start of the pandemic some 14 months ago topped 1 million. That’s a grim milestone, and worrying enough. But the real source of discomfort has to do with the remarkable drop in the number of active cases.
From 203,710 active cases on April 17, the total fell to 77,075 on April 25. (It dropped further yesterday, to 74,623, with 11,333 recoveries and 8,929 new cases recorded.) This should call for, if not a celebration, then at least a round of congratulations. This is good news, right?
“But DOH reported more than 93,000 [new] cases in just the past 10 days, higher than today’s [number of] active cases,” Edson Guido, a PhD candidate in economics at the University of the Philippines and data analytics lead of ABS-CBN, wrote on April 25.
If I understand him correctly, that means that — even assuming that all 93,000 new cases are mild and asymptomatic — all those 93,000 new cases by the DOH’s own standards must still be considered active on the 10th day. (The standard guidance today is if you test positive but do not show any symptoms, you must isolate for 10 days.) Why was the total number of active cases pegged at 77,075? Puzzling, to say the least.
Continue reading
You must be logged in to post a comment.