Vitamin B1 Is Vital to Protect Against Infectious Disease Analysis by Dr. Joseph Mercola STORY AT-A-GLANCE Thiamine (vitamin B1) deficiency syndrome (beriberi) has many similarities to sepsis — a primary cause of COVID-19 mortality — and thiamine deficiency is relatively common in critically ill patients in general Thiamine deficiency is prevalent in pulmonary tuberculosis, and the more severe the case, the more severe the thiamine deficiency. Thiamine has been shown to limit Mycobacterium tuberculosis by regulating your innate immunity Thiamine deficiency is also associated with the development of high fever, and some researchers have suggested that serious infections may in fact be a presenting manifestation of thiamine deficiency Clinical case reports have shown thiamine injections reversed a number of acute illnesses in which high fever was a factor, including one case where the patient presented with high fever, headache and asphyxia, and another where the patient...