Malaria was eliminated form the United States in 1951 but is still deadly around the world. There were 214 million cases and 438,000 deaths in 2015, mostly young children in sub-Saharan Africa. Each year approximately 1,500 travelers become infected abroad and return to the United States.
Anyone can get malaria. Usually people get malaria after being bitten by an infective Anopheles mosquito but malaria is also transmitted by shared needles or syringes. It is not sexually transmitted. Symptoms start ten days to four weeks after infection.
Many effective anti-malaria medications are available. It is best to buy the medications in the United States since there is a risk of counterfeit medications and/or the medications may not be safe. There is no vaccine available yet.
A comprehensive review from the CDC answers almost all questions.