WHO Update on Covid-19: Trends in Cases, Transmissibility, Disease severeness and Vaccine Effectiveness
Global Overview of Covid -19 as Of 23 January 2022 A slower increase in case incidence was observed at the […]
Coronavirus prevention
When and How To Wear a Mask: Coronavirus Disease (WHO Update)
Since the outbreak of 2019–20 coronavirus pandemic ,most of the people are confused about the efficacy of using masks to