Africa carries about 36% of global rabies burden — 21,476 deaths per year, almost all transmitted by dog bites. Most victims are children under 15.

Once rabies symptoms appear, mortality is near 100%. Post-exposure vaccination works only before symptoms. Stray dogs are main reservoir. Major problem in DRC, Ethiopia, Nigeria, Tanzania.

Across all of Africa. Highest rabies burden: DRC, Ethiopia, Tanzania, Nigeria, Kenya. Eradicated in: South Africa (urban), Egypt (mostly).

Stray and unvaccinated dogs are main reservoir. Children most vulnerable due to height and inability to defend themselves.

Stocky, aggressive shark up to 3.5 m. Uniquely tolerant of fresh water — found in the Zambezi 200 km inland, in Lake Nicaragua.

Top contender for most dangerous shark to humans. Hunts in shallow, murky water where people swim. Many attacks attributed to great whites are actually bull sharks.

Coasts and rivers — South Africa (Indian Ocean), Mozambique (Zambezi), Egypt (Red Sea), Senegal, Ghana coast.

Aggressive and territorial. Tolerates salinity from 0 to 53 ppt. Attacks unprovoked more than other sharks.

Up to 35 cm. Striking red-white striped fins with venomous spines. Native to the Red Sea and Indian Ocean coast of Africa.

13 venomous dorsal spines cause intense pain, swelling, nausea, occasionally breathing difficulty. Rarely fatal but agonizing. A hazard for divers and waders.

Coral reefs of the Red Sea and East African coast — Egypt, Sudan, Eritrea, Djibouti, Kenya, Tanzania, Mozambique.

Slow-moving, fearless due to venom defense. Spreads fins to corner prey. Active at dusk hunting small fish and shrimp.