The US State Department considers Angola a developing country with lingering problems of infrastructure and communications. Fighting persists in some parts of the country, and travel outside of Luanda can be dangerous. Roadways are pocked with holes and land mines, and tourist services including hotels can be scarce outside of the capital. Luanda is seen as safe during the day. General safety precautions such as locking car doors, hiding valuables, and using discretion when talking with strangers should still be practiced. At night, Luanda can become more dangerous, and travel on roads during this time should be avoided. Traveling on roads outside of Luanda should be avoided at all costs after nightfall. Street crimes are common in Luanda, and include pickpocketing, carjacking and armed muggings.

    Visitors to Luanda should practice extreme caution while traveling in Luanda. Unregulated taxis can present a crime risk and should be avoided. Motorists who are stopped by the police should not attempt to bribe the officer, or comply with the officer if he asks for a bribe. Instead, the motorist should ask to be issued a ticket and politely ask for the officer's name and badge number.

    For more information on safe travel in Luanda, check the U.S. State Department's Angola Travel web site. 

 Real World Advice

 There are a couple of good clinics run by ex-pats in Luanda where medical treatment (especially for Malaria) is routine and western insurance coverage is accepted and English is spoken.

Outside of Luanda, as far as medical treatment is concerned, your best friend is the flight back to Luanda!

Angola in general is a very high risk malaria area, including cloroquine resistant strains, Malarone is probably the best bet, although the doctors here advise residents to take nothing as anti-malarials can hide early symptoms
Luanda is not too bad malaria wise, much of the city has a nice breeze, so mosquitos are kept at bay.
You should still take care to cover up during the sunset hours though.