Vaccinated People Spread The Delta Variant, CDC Says

[MyManao]

From... https://www.axios.com/coronavirus-vaccin...57070.html

New data on coronavirus vaccine effectiveness may be "a wakeup call"

A new preprint study that raises concerns about the mRNA vaccines' effectiveness against Delta — particularly Pfizer's — has already grabbed the attention of top Biden administration officials. 

What they're saying: The study found the Pfizer vaccine was only 42% effective against infection in July, when the Delta variant was dominant. "If that's not a wakeup call, I don't know what is," a senior Biden official told Axios. 

Driving the news: The study, conducted by nference and the Mayo Clinic, compared the effectiveness of the Pfizer and Moderna vaccines in the Mayo Clinic Health System over time from January to July.

• Overall, it found that the Moderna vaccine was 86% effective against infection over the study period, and Pfizer's was 76%. Moderna's vaccine was 92% effective against hospitalization and Pfizer's was 85%.
  
• But the vaccines' effectiveness against infection dropped sharply in July, when the Delta variant's prevalence in Minnesota had risen to over 70%.
  
• Moderna was 76% effective against infection, and Pfizer was only 42% effective.
  

The full article is at the link above