Africa's coronavirus cases have officially passed the one-million mark.
This is a significant milestone and an alarming one.
But it is also a mystery.
More than 500,000 cases of Covid-19 have already been confirmed in South Africa alone.
The country has good data and - compared with most of Africa - a huge testing operation under way.
So, is it really possible that there are only another half a million cases across rest of the entire continent? The short answer is no.
Experts here agree that, given the minimal amount of testing it is almost certain that Africa has already sailed far past the one million mark.
But doctors also point out that hospitals in many countries are not yet overloaded with suspected Covid-19 cases.
There are many possible explanations: fear of going to clinics, early lockdowns in many countries and sparser populations.
And because there is still so much to learn about Covid-19, it is possible that some populations may enjoy some extra protection against the virus, perhaps because of immune systems already bolstered by previous battles against malaria, cholera and other diseases.