03:01 Amid the emergence and spread of more contagious strains of COVID-19 countries around the world are tightening travel restrictions.That includesCanada, with a new ban on allfligh
05:09 As the virus mutates, and some of these new strains become more infectious, CGTN's Roee Ruttenberg looks back at how the pandemic emerged.Check outThe China Report, our new weekl
Scientistshaveengineeredanantibodythatattacks99%ofHIVstrainsandcanpreventinfectioninprimates.Itisbuilttoattackthreecriticalpartsofthevirus-makingitharderforHIVt
The Zika virus has undergone "significant" genetic changes since it was first discovered in 1947, according to a study published Friday by U.S. and Chinese researchers that traced how a relatively unknown pathogen led to the current fast-spreading outbreak in the Americas.