Comprehensive Reuters, The Associated Press and other foreign media reported on the 27th that according to the latest report released by the US Centers for Disease Control and Prevention on the 26th, in the wave of infection caused by the Ami kerong variant strain, about 58% of Americans have been infected with the new crown virus, and the infection rate of children under 12 years old is as high as 75%.
Blood sample (Source: Reuters)
According to the analysis data of national blood samples released by the US Centers for Disease Control and Prevention on the 26th, between December 2021 and February 2022, when the Omiljun strain was ravaging in the United States, the proportion of the US population with antibodies after infection increased significantly from about 34% in December last year to about 58% in February this year.
Infection rates are lowest in the elderly and highest in children
Among adults aged 50 and under, 37 percent had antibodies in December, compared with 64 percent in February; in people aged 50-64 years, from 29 percent to 50 percent; in adults aged 65 years and over, from 19 percent to 33 percent; and in children aged 17 years and younger, from 45 percent to 75 percent.
The Opichron wave has pushed infections in every age group, but children and adolescents (many of whom remain unvaccinated) have the highest rates of infection, while those aged 65 and older ( whose vaccination rates are high ) have the lowest rates.
Can having antibodies avoid infection?
Scientists look for specific antibodies against the new coronavirus that appear only after infection, are not produced by the coronavirus vaccine, and can stay in the bloodstream for up to two years.
The study's co-author, Christie Clark of the U.S. Centers for Disease Control and Prevention, said having antibodies doesn't necessarily mean you can avoid future infections, and the study didn't measure whether people who had been infected with the new coronavirus had high enough antibody levels to stop re-infection or serious illness.
The CDC still recommends wearing masks in all indoor public transit settings and emphasizes that vaccination remains the most effective form of protection.
Covid-19 infections in the United States are on the rise
ROCHELLE Valensky, director of the Centers for Disease Control and Prevention, told reporters at a news conference that the number of new coronavirus infections in the United States is on the rise, rising 22.7% in the past week to 44,000 people per day. Hospitalizations rose 6.6 percent for the second consecutive week, largely driven by the Omecloa variant.
While the death toll has declined, the U.S. is rapidly approaching the grim milestone of 1 million deaths. According to the real-time statistics system of global new crown pneumonia data released by Johns Hopkins University in the United States, the cumulative number of confirmed cases of new crown pneumonia in the United States is 80.97 million, and the cumulative number of cases is 991,000.
Valensky said the BA.1 strain that caused the Omicron wave now accounts for only 3 percent of transmission cases in the United States. The BA.2.121 subtype strain first detected in upstate New York accounts for nearly 30 percent of U.S. cases and appears to be 25 percent more contagious than the BA.2 subtype strain.
According to federal data, more than 66 percent of Americans have been vaccinated against COVID-19, and nearly 46 percent of Americans have been vaccinated with boosters.
Upstream News Compiled by Ruochen Yang