Vincent and Rich discuss the SARS-CoV-2 D614G amino acid change in the spike glyprotein, duration of infectious virus shedding from patients, virus transmission among hamsters infected in the laboratory, and tackle listener email.

Daniel Griffin provides a clinical update on COVID-19, then Ralph Baric joins TWiV to discuss SARS-CoV-2 transmission, vaccines, diagnostic tests, and a new animal model from his laboratory that does not use transgenic mice.

Daniel Griffin provides a clinical update on COVID-19, then we review an Ad5 vectored SARS-CoV-2 vaccine, reports on remdesivir and hydroxychloroquine, a drug repurposing study, why some patients infect many others, reducing viral transmission, and much more, including listener email.

From the Nipah Virus International Conference in Singapore, Vincent speaks with meeting participants about the history of the first Nipah virus outbreak, lessons learned from Hendra virus, surveillance of bats for viruses, and the development of a vaccine.

Daniel Griffin provides a clinical update on COVID-19, then we review results showing requirement for the furin site in the SARS-CoV-2 spike for replication, US state vaccine exemptions, concerns with a rapid diagnostic test, and answers to listener questions.

From the Nipah Virus International Conference in Singapore, Vincent speaks with Richard Hatchett, CEO of CEPI, about its mission to stimulate and accelerate the development of vaccines against emerging infectious diseases.