The World Health Organization(WHO)declared coronavirus disease-2019(COVID-19),a global pandemic on 11 th March 2020,as its causative virus"severe acute respirat
The world has experienced several epidemics posing serious threat to global public health,including the 2002 severe acute respiratory syndrome(SARS)epidemic tha
Enteric fever remains a tropical disease of public health significance in Africa, due to its high endemicity and transmission rates, more in sub-Saharan Africa