The National Public Health Laboratory in Khartoum has polio, cholera, and measles pathogens. There's a large pic from inside the facility here, posted in 2020. https://www.aljazeera.com/news/2023/4/25/more-foreigners-fle... Looks like a wall or window air conditioning unit, so it can't be BSL-4 and probably isn't even BSL-3 ... I hope.