The complete blood count, also known as the CBC is an essential comprehensive blood panel that allows your doctor to evaluate each type of cell in your blood and may be used to help diagnose a range of health conditions. An ESR test is used to assess inflammation in the body. Many conditions can cause an abnormal ESR, so an ESR test is typically used with other tests to diagnose and monitor different diseases. 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. 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).