Current Flu Symptoms May 2024. The who says that symptoms usually begin about a week after infection, but can show up at any time between one and 21 days after exposure. Covid is continuing to evolve very rapidly, and every three or four months we get a new covid variant.
Dr ngashi ngongo, chief of staff at africa cdc, also told al jazeera that the virus only causes symptoms that last “two to four weeks”. This percentage remained stable (< 0.1 percentage point change) compared.