Nobody has mentioned that this virus not does thrive in hot and humid climates like many African countries--I believe the molecular structure is more apt to break down. In the US there is also an expectation of a summer decline perhaps followed by another spike in the fall.
This is a commonly misstated fact.
The virus is doing quite well in tropical islands. Australia is seeing the beginning spread of the virus as well.
The fact is, this strain of coronavirus originated in bats. Flying increases body temperature quite a bat; this coronavirus can withstand body temperatures of at least 104° quite easily.
Another note to add: not all of Africa is hot. Places like Kenya and Ethiopia are ranging from 50s - 70s right now.