"We conduct internationally excellent science to benefit human health with a focus on sub-Saharan Africa. MLW is built around excellent laboratories, strategically located in the largest hospital in Malawi, closely linked with the community and an integral part of the medical school. These relationships provide a unique opportunity replicated in few centres in Africa to study major health issues spanning both community and hospital."
That's taken from their website and they try live up to their word. They have a café within their premises so you're not likely to go hungry but visitor parking is limited.
Accessible.