The Widal Test aids in the diagnosis of typhoid fever and paratyphoid fever, which are both types of enteric fever brought on by ingesting tainted food or water with Salmonella bacteria. High fever, headache, constipation or diarrhoea, rose-colored patches on the chest and an enlarged spleen and liver are some of the symptoms of this infection. This test aids in the discovery of antibodies in a blood sample against the two bacterial antigens (O & H). Malarial Parasite test is performed on the blood sample to find out the level of Malaria Parasite in the blood. It is conducted to conclude on Malaria and also during the treatment and after the treatment of Malaria. It is also known as MP Smear Blood, PBS for MP Smear Blood, Peripheral Blood Smear Malaria Parasite Smear Blood, Malarial Parasite Smear, PBS for MP.