An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Huang CY, Lin CC, Hsieh CY, Lin CY, Chen TT, Wu PC, Liu DH, Tou SI, Yen HR.Huang CY, et al. Among authors: wu pc.Vaccines (Basel). 2022 Mar 27;10(4):520. doi: 10.3390/vaccines10040520.Vaccines (Basel). 2022.PMID: 35455269Free PMC article.