Four people in OR tested positive for the coronavirus after receiving both doses of the COVID-19 vaccine, health officials said. They are considered breakthrough cases as the individuals all got sick at least 14 days after receiving the second dose of the COVID-19 vaccine.
The Oregon Health Authority also said as more communities open activities, they "anticipate that cases are likely to increase".
The Health Authority assured the public that such instances are not considered "unexpected" and should not be a cause for doubt or panic.
The Pfizer/BioNTech vaccine on Sunday became the first shot approved for use in Japan - which has lagged behind other major economies as it is running domestic trials before giving each jab the green light. "In those cases, even though the participants got COVID, the vaccines reduced the severity of illness", they added. The vaccination drive would be completed within a year, Kono said. The CDC is now tracking "breakthrough" cases, and OR officials shared their information with the agency.
As of Monday morning, February 15, at least 38,292,270 people in the US have received at least one dose of either Pfizer's or Moderna's COVID-19 vaccine, according to the CDC, and 14,077,440 people have gotten both doses.
Studies have also indicated that the vaccines supplied by the two companies are, on average, 94% effective against the virus. It is not fully understood if those fully vaccinated can be asymptomatic spreaders of the coronavirus.
Britain, which has recorded more than 120,000 deaths from COVID-19, was the first Western country to begin mass vaccinations in December, seeing the shots as a route out of strict lockdowns which have caused the biggest crash in economic output in more than 300 years.
Sidelinger said these four cases are a good reminder that even if someone is vaccinated, wearing a mask and remaining socially distant is still recommended to slow the spread of the coronavirus.
The government had planned to administer the first dose this coming Saturday, following the Monday arrival of the country's first vaccine doses.