Both China and Africa have “wet markets” where wild live or freshly killed animals are sold with little supervision.
SARS disease in 2002 happened when a virus originally in Bats jumped to wild Civet Cats and then to humans in a China wet market.
Around 1890 to 1920 HIV-2 virus jumped from Sooty Mangabey monkeys to humans, and HIV-1 virus jumped from Chimpanzees to humans in African wet markets.
The wet markets of China and Africa are a danger to everyone on earth.