Flying Doctors
Air-ambulance services operating across East and Southern Africa — best known is AMREF Flying Doctors out of Nairobi, which runs dedicated medevac aircraft and short-term tourist evacuation memberships across the region.
AMREF Flying Doctors has operated air ambulances from Nairobi's Wilson Airport since 1957 and is the evacuation backbone for much of East Africa — a Masai Mara airstrip can have a medevac aircraft inbound within hours. Similar services cover Southern Africa from Johannesburg.
Tourist evacuation memberships (AMREF's cover short stays in East Africa) are inexpensive but are not travel insurance: they fly you to a Nairobi hospital and stop there. Treatment costs, repatriation, cancellation, and baggage still need a real policy. The strongest setups pair a specialist policy with an insurer that contracts these services directly.