Fall and winter are around the corner, which means not only is it time to get your flu shot, but US health officials are urging everyone who is eligible to get their updated Covid-19 booster, too.
원문출처 : https://www.cnn.com/2022/09/12/health/covid-booster-flu-shot-timing-explained-wellness/index.html
원문출처 : https://www.cnn.com/2022/09/12/health/covid-booster-flu-shot-timing-explained-wellness/index.html