survey findsTheeffectivenessof this year's influenza vaccine was lower in South America than last season, the Centers for Disease Control and Prevention reported Thursday, which might be a clue to how much protection theshotscould offer people in the U.S. this winter.Vaccine effectiveness was 34....
SUGGESTED for you One reason this season has been so challenging is that the A(H3N2) viruses have been linked to more severe illnesses. In recent weeks, more B viruses and H1N1 viruses have been circulating, for which the vaccine is somewhat more effective. Specifically, the vaccine is 67% ...
Louise Jury
While social distancing and wearing masks kept the 2021–2022 flu season milder than pre-pandemic levels, experts who expect flu cases to rise this year as COVID-19 restrictions are lifted are urging people to get their flu vaccine to prevent the nation's health care system from being overwhe...
ABC News' chief medical correspondent Dr. Jennifer Ashton weighed in on "Good Morning America" to share her take on this year's strain, the vaccine and how to stay healthy. "It's so difficult to predict, we only know in hindsight," she explained. "You can't predict it." ...
on strain differences this year compared to last year. However, everyone 6 months and older (especially those at high risk such as pregnant, elderly or those with underlyinghealth conditions) should get this year's flu vaccine. Last year's vaccine will not protect against this year's strains...
根据第二段“If there is a new flu strain not found in that year’s vaccine, the antibodies that we generated last year won’t be able to protect us. So the pandemic happens.”(如果那年的疫苗没有发现新流感病毒毒株,那么去年产生的抗体就不能保护我们,从而引发大流感。)及“However, flu ...
"Basically that strain drifted or mutated in some way after the flu vaccine was already made," Dr. Holly Phillips told "CBS This Morning" earlier this year. CBS News' Dr. Jon LaPook reports that the calendar may still say summer, but 89-year-old Angelina Stamas is still thinking about ...
(HealthDay)—This season's flu vaccine may do little to prevent infection with the main circulating virus strain because the strain has changed since the vaccine was developed, a new study suggests.
Most illnesses this winter have been caused by a nasty kind of flu called Type A H3N2. The vaccine was only 25 percent effective against that type. It was more effective against influenza B and an H1N1 strain, but those viruses were less prevalent this year. ...