When the US Centers for Disease Control and Prevention recently reported that almost 8% of the millions who have received the first dose of a Covid-19 vaccine hadn’t returned to get the second ...

Delaying the second dose of Pfizer's COVID-19 vaccine could ... Read next BI Tech Memo An icon in the shape of an angle pointing down.

Terri Lynn in Naples, Florida said that she had to embark on a repeat three-hour road trip for her second dose. Elsie Morales in New York said that her grandmother is still waiting for her second ...

In a second, Canadian researchers found evidence of more than 90% protection after a single dose of the Pfizer/BioNTech vaccine. It’s not at all clear how long this protection would last ...

That trip to the clinic is inconvenient and takes time. And that first dose already offers some protection. Tempted to skip that second dose of your COVID-19 vaccine? Don’t do it, experts say.

Kristen Marks, an infectious-disease expert at Weill Cornell Medicine and New York-Presbyterian, said if people start skipping the second dose, she believes “you’d start to see more infections.” ...

Less than half said they believed the shots provided strong protection a week or two after the second dose, according to a news release posted to EurekAlert.org. Poland argues the general public ...

The vast majority of recipients of the two-dose Pfizer and Moderna vaccines are able to get their second shot within the recommended period, according to vaccine data reviewed by The Washington Post.

"The second dose should be administered as close to the recommended interval as possible," the CDC said in an update to its website Thursday. "However, if it is not feasible to adhere to the ...