Grid View List View Latest Most Viewed Most Commented 11:19 Widal test – Introduction & procedure 2244 March 12, 2020 Hi everyone, in this video we discuss the Widal test. The Widal test is a serological method to diagnose enteric fever (paratyphoid & typhoid fever) caused by Salmonella paratyphi & typhi. Typical symptoms can be high fever, sweats, headache, stomach pain, and rashes etc. including complications like intestinal haemorrhages and/or perforation. Interested? Find more information… Read more » COVID-19 (Coronavirus Disease 19) March Update- causes, symptoms, diagnosis, treatment, pathology 0 March 12, 2020 What is COVID-19 (Coronavirus Disease 19)? The coronaviruses that circulate among humans are typically benign, and they cause about a quarter of all common cold illnesses. But occasionally, coronaviruses, like COVID-19, circulate in an animal reservoir and mutate just enough to where they’re able to start infecting and causing disease in humans.