A TWiV threesome explains the observation that humans with inherited T cell CD28 deficiency are susceptible to severe warts driven by human papilloma virus infection, but are otherwise healthy.

In COVID-19 clinical update #93, Dr. Griffin summarizes Omicron fitness, S-gene target failure, monoclonal efficacy against Omicron, vaccination, monoclonals, and disease in children, persistence of memory B cells in the elderly, infection and vaccine induced immunity, protection against severe illness and death by a third mRNA vaccine dose, high flow oxygen versus intubation, and therapeutic anticoagulation.