Breakthrough Covid-19 infections “rare” among fully vaccinated nursing home residents, CDC says


Most fully vaccinated residents of nursing homes were not infected, even after someone in the same facility tested positive for Covid-19, according to a new study that looked at infections in nursing homes in Chicago from the US Centers for Disease Control and Prevention.

Among the nearly 8,000 residents and nearly 7,000 staff that have received two doses of a Covid-19 vaccine since December, there were only 22 breakthrough infections among the fully vaccinated, according to the CDC’s Weekly Morbidity and Mortality Report published on Wednesday.

The CDC considers people to be fully vaccinated two weeks after the second dose of the Pfizer or Moderna vaccine or two weeks after the single Johnson & Johnson vaccine.

Of the 22 breakthrough cases, there were 12 residents and 10 staff members who tested positive for Covid-19 after being fully vaccinated. Two-thirds of those who tested positive, 14 people, were asymptomatic. Two residents were hospitalized and one of those residents died, the CDC said. The person who died had three underlying conditions, according to the CDC.

There was no facility-associated secondary transmission.