It uses that TB vaccine, named BCG, which is made of a live but weakened bacterial cousin of the TB germ. Possibly next in line: Oral polio vaccine, drops made of live but weakened polio viruses. At the US National Institutes of Health, researchers are in early discussions about proposals to study the TB and polio vaccines as a possible COVID-19 defense, said agency spokeswoman Jennifer Routh. What about oral polio vaccine? His mother was a Soviet scientist who in the 1970s published research showing flu cases dropped markedly after oral polio vaccination.

Source: Manila Times April 14, 2020 11:26 UTC