Chinanews.com, October 28. According to a report on the 27th of the US Chinese website, the US Centers for Disease Control and Prevention (CDC) recently issued the latest guidelines stating that some people with moderate or severe immune function may need a fourth dose of vaccination. New crown vaccine.
Data map: Pfizer's new crown vaccine.
Photo by China News Agency reporter Liao Pan
According to reports, studies have shown that the booster dose can enhance the antibody response of certain immune-compromised people.
The fourth shot should be administered six months after the third shot of vaccination.
According to reports, the CDC currently has no recommendations on the fourth needle.
But the CDC says people should talk to doctors to determine if vaccination is necessary.
According to reports, people with moderate to severe immunodeficiency, including those receiving blood cancer or tumor treatment, certain organ transplants and stem cell recipients, patients with advanced or untreated AIDS, and taking high-dose corticosteroids or other People with drugs.
CDC estimates that in the United States, there are about 9 million people in this category, accounting for about 2% of the total population.