CDC warns of a “significant decline” in vaccine effectiveness for some, prompting booster dose decision



New data being released Wednesday by the Centers for Disease Control and Prevention warns of a “significant decline” in vaccine effectiveness against infection from COVID-19 in nursing home residents, as the highly contagious Delta variant of the virus causes a spike in hospitalizations among mostly unvaccinated Americans.

The release came as the Biden administration says it is preparing to offer booster shots for all Americans who got the Pfizer or Moderna vaccines, eight months after their second dose, beginning the week of September 20.

“Given this body of evidence, we are concerned that the current strong protection against severe infection, hospitalization and death could decrease in the months ahead, especially among those who are at higher risk or who were vaccinated earlier,” CDC Director Dr. Rochelle Walensky said at a briefing Wednesday.


Publication Date: 18 August 2021

Publication Site: CBS News

Covid-19 Cases Rise in Parts of U.S. Even as Vaccinations Pick Up



The Centers for Disease Control and Prevention reported Monday that the seven-day average of new Covid-19 cases is at more than 67,443, up 1% from the prior seven-day average of 66,702. Four weeks ago, the seven-day average was 53,000 cases a day, said Rochelle Walensky, director of the CDC, during a press briefing Monday.

The U.S. is in a “complicated stage” of the pandemic, Dr. Walensky said.

“The more people get vaccinated, the fewer infections there will be, which means fewer variants will emerge and fewer breakthrough infections will occur and the quicker we can get back to doing the things we love,” said Dr. Walensky.

More than a quarter of the U.S. population has now been fully vaccinated against Covid-19, according to CDC data. The country administered an average of 3.2 million doses a day over the past week, according to a Wall Street Journal analysis of CDC data.

As of Monday, all American adults are eligible to receive a Covid-19 vaccine, with every state meeting the April 19 deadline set by President Biden.

Author(s): Melanie Grayce West

Publication Date: 19 April 2021

Publication Site: Wall Street Journal