The massive COVID-19 outbreak in the town of Cape Cod has changed the understanding of health authorities about the coronavirus. Delta variant, And played an important role in the decision to recommend masks indoors, even for people who were completely vaccinated against the virus.
According to local media outlets, the outbreak occurred in Provincetown, Massachusetts, after a celebration on July 4, causing nearly 900 COVID-19 infections. WHDH.. Health officials soon realized that many infected people were completely vaccinated against COVID-19. Such “breakthrough incidents” were previously considered rare.
Now new Report from the Centers for Disease Control and Prevention (CDC) Shows the details of the outbreak investigation and the context behind the new masking recommendations.
The report describes 469 COVID-19 cases in Massachusetts residents that led to the outbreak of Provincetown. (Most of the other cases associated with the outbreak of Cape Cod are from individuals living outside Massachusetts.)
Of these, 346, or 74%, were completely vaccinated. About 46% received the Pfizer vaccine, 38% received the Modana vaccine, and 16% received the Johnson and Johnson vaccine. Most of the groundbreaking cases (87%) were male, with an average age of 42 years (the authors found that the demographics of these cases were “sold to adult male participants” at local events. It is likely to reflect the demographics of those who did.)
Approximately 80% of breakthrough cases are experienced Symptoms of COVID-19The report states that it includes coughing, headaches, sore throats, muscle aches and fever. A total of 5 people were hospitalized, 4 of whom were completely vaccinated. Two of the four fully vaccinated patients had an underlying medical condition, the report said.
Health officials analyzed 133 swab samples and found that nearly 90% were infected with the delta mutant. In addition, when a sample of 211 cases was analyzed, the so-called CT value, which is a surrogate value of viral load, was found in those who were completely vaccinated and those who were not vaccinated or partially vaccinated. I found that it was almost the same.
“High viral load suggests an increased risk of infection, and unlike other variants, there are concerns that vaccinated people infected with Delta may be infected with the virus. It’s growing, “said Dr. Rochelle Walensky, director of the CDC. Said in a statement About the survey results announced on Friday (July 30). “This finding was of concern and was a crucial finding leading to the CDC’s updated mask recommendations.”
Of the agency Updated mask guidancePeople living in “high or substantial” COVID-19 infected areas, released on Tuesday (July 27), recommended wearing masks indoors, even if they were fully vaccinated. .. However, the authors of the new report said their findings suggest that recommendations may go further to advise on universal masking.
“Given the potential risk of infection when attending large meetings, including masking in indoor public environments, regardless of vaccination status, even in jurisdictions where COVID-19 infection is substantial or high. We may consider expanding our preventive strategy, “the report said.
Originally published in Live Science.
How 350 vaccinated people caught COVID-19 in a Cape Cod outbreak
Source link How 350 vaccinated people caught COVID-19 in a Cape Cod outbreak