Focus Feature: Shoulder pain rare after vaccination

Shoulder pain and injury are extremely rare after any type of vaccination in the upper arm, according to pre-pandemic Kaiser Permanente Southern California research published last week in Annals of Internal Medicine. The study was conducted from April 2016 through December 2017, and found fewer than 1 in 10,000 people reported shoulder injuries in more than 2.2 million vaccinations. The study authors suggested that injuries were preventable by administering vaccines correctly. 

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In the News

Five questions...

for Dr. "Charlie" Huang

Dr. Cheng-Wei “Charlie” Huang is a hospitalist at the Kaiser Permanente Los Angeles Medical Center who has spent recent years also focused on research that can improve care for patients.