climate change Archives - Page 24 of 31 - GTEC Green Technology Education Centre
Herd Immunity

Herd Immunity

By Ross Thrasher The goal of “herd immunity” against COVID-19, whereby enough people are protected (by vaccines or recovery from infection) that the disease no longer circulates, may not be truly achievable in 2021. It is believed that at least two-thirds...
Virus Evolution

Virus Evolution

By Ross Thrasher There are growing global worries about the development of new strains of the COVID-19 virus. The variant originally detected in the United Kingdom, labelled B117, has now spread around the world. This variant seems to be 50% more contagious than the...