Laboratory Tests. Testing is performed to help diagnose malaria, to monitor for relapses, and to determine drug susceptibility of the parasite causing the infection. Diagnosis of malaria involves performing blood smears. For a blood smear, a drop of blood is applied to and spread onto a glass slide.
Wash your hands. Frequent hand-washing in hot, soapy water is the best way to control infection. Wash before eating or preparing food and after using the toilet. Carry an alcohol-based hand sanitizer for times when water isn't available.
Avoid drinking untreated water. Contaminated drinking water is a particular problem in areas where typhoid fever is endemic. For that reason, drink only bottled water or canned or bottled carbonated beverages, wine and beer. Carbonated bottled water is safer than uncarbonated bottled water
Ask for drinks without ice. Use bottled water to brush your teeth, and try not to swallow water in the shower.