Brazil’s response to a huge yellow fever outbreak: Kill the monkeys - The Washington Post
▻https://www.washingtonpost.com/news/worldviews/wp/2017/04/15/brazils-response-to-a-huge-yellow-fever-outbreak-kill-the-monkeys
But, contrary to local lore, these primates don’t transmit the disease. In fact, they play a crucial role in preventing its spread. A dead monkey is often the first sign yellow fever has reached a new town, which can serve as an alarm bell for authorities directing vaccination campaigns. It’s a warning sign that allows health officials to monitor the disease before it hits humans.