The battle to contain Africa's hidden killers

Photos: Africa's deadliest snakes
Black mamba – Commonly found on the east coast of Africa, the mamba has a bite that can kill humans within a day with venom that attacks the heart and nervous system.
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Photos: Africa's deadliest snakes
Carpet viper – Family of snakes that are responsible for thousands of deaths in sub-Saharan Africa. Their venom attacks the blood, preventing clotting and causing haemorrhages.
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Photos: Africa's deadliest snakes
Puff adder – Known for its loud warning hiss, the puff adder is found across Africa. Its potent venom causes massive tissue damage.
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Photos: Africa's deadliest snakes
Mozambique spitting cobra – Commonly found in southern Africa, the cobra can accurately spit tissue-destroying venom over distances of several meters.
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