If the country of your nationality has an Embassy there register with it.
Don't venture out after dark or indeed unless it is really neccessary and remove all jewellry, watches etc. before you do. Remember life is cheap in Africa.
Most people there are genuinely friendly which makes spotting the no-gooders more difficult. Be curteous but remain suspicious.
Best andidote to Malaria is not to get bitten, take anti-mosi spray, a few cloves of garlic and a mosi net if your intended accommodation does not supply them. One section of raw garlic swallowed mid afternoon will provide a good defense, it has a chemical which when expelled throughthe skin pore in seat is effective against mosi's.
Steer clear of the local gals, instead use your hand.
Otherwise it's not unlike the rest of Africa