All of the authorized COVID-19 vaccines are effective at preventing symptomatic disease. Yet Fox News host Tucker Carlson baselessly casts doubt on the effectiveness of the vaccines, because federal officials urge fully vaccinated people to wear masks in public settings.
The Centers for Disease Control and Prevention says SARS-CoV-2, the virus that causes COVID-19, is transmitted from person to person in close contact, within about 6 feet of one another.
Scientists suspect the transmission is similar to how influenza is spread, with the virus travelling through respiratory droplets when infected people cough, sneeze, talk or breathe.
Less commonly, the CDC says, SARS-CoV-2 can be spread through airborne transmission,
At a June 8 press conference, a World Health Organization scientist confusingly suggested that asymptomatic transmission of the coronavirus is “very rare” — a statement that many scientists found problematic, and which some politicians and those on social media seized upon as evidence that certain public health measures were not necessary.