A paper published Sept. 30, in Eurosurveillance showed COVID spread rapidly by a fully vaccinated patient to fully vaccinated staff, patients and family members — despite a 96% vaccination rate and use of full personal protective equipment. Five patients died and nine had severe cases.
The authors concluded:
“This communication … challenges the assumption that high universal vaccination rates will lead to herd immunity and prevent COVID-19 outbreaks … In the outbreak described here, 96.2% of the exposed population was vaccinated. Infection advanced rapidly (many cases became symptomatic within 2 days of exposure), and viral load was high.”
“The breakthrough rate of 96.2% of the vaccinated population shows that in this instance, the vaccine was virtually useless in preventing transmission,” Hooker said. “It should also be noted the two reported cases among unvaccinated patients were mild, whereas six of the vaccinated patients died.”