Monday, 15 February 2021_At least four people in the US state of Oregon have contracted the coronavirus two weeks after receiving the second dose of the American vaccine.
The Oregon Health Authority said the re-infections are called “breakthrough cases|” and it means the fully vaccinated people contracted the virus at least 14 days after completing their vaccination series.
US Health experts warn that this could become more common with the variants that have emerged in the COVID-19 pandemic.
The state agency said some of those infected were experiencing mild symptoms and the others were asymptomatic.
It is unclear which of the two vaccines - Pfizer/BioNTech or Moderna - was used to vaccinate the four re-infected Americans.
The Oregon Health Authority did not rule out that there might be more "breakthrough cases”, but added that vaccination may prevent those jabbed from falling seriously ill.
The state of Oregon has 150,034 confirmed cases and 2,137 deaths, according to Johns Hopkins University. More than 177,000 people have been fully vaccinated against the coronavirus.
The state agency said it’s inevitable that some of those inoculated would become re-infected.
US health experts noted that many “breakthrough cases” were reported during the Moderna and Pfizer COVID-19 vaccination trials.
Reports said, last week, nearly 40 American recipients of Pfizer’s and Moderna’s COVID-19 vaccines in the US developed a rare immune disorder that attacks the blood. One patient died after receiving the vaccine.
The slain patient was a Miami doctor, who died in January of a brain hemorrhage after he received the vaccine.