Covid Mutants
- Episode aired Feb 20, 2021
Richard Engel reports on how new variations of the coronavirus are getting better at evading our natural defense systems. With cases of people being re-infected with Covid-19 in Brazil and S... Read allRichard Engel reports on how new variations of the coronavirus are getting better at evading our natural defense systems. With cases of people being re-infected with Covid-19 in Brazil and South Africa, public health experts say these new variants are challenging our prospects fo... Read allRichard Engel reports on how new variations of the coronavirus are getting better at evading our natural defense systems. With cases of people being re-infected with Covid-19 in Brazil and South Africa, public health experts say these new variants are challenging our prospects for "herd immunity."