推廣有效的疫苗策略將是下一階段對抗COVID-19大流行的首要任務, 上海著名醫生張文宏週一在其新浪微博帳戶上寫道. “有一定比例的病例儘管接種了兩劑疫苗，但仍出現嚴重情況，需要補充氧氣. 但發病率 …

A swab is a small mass of absorbent material (such as cotton) wound around one end of a stick.The medical flocked swab is used for dressing or wiping on a certain area. It is usually used as a medical examination tool for collecting microorganisms, exfoliated cells or secretions. 與傳統採樣拭子相比, 植絨棉籤有以下區別. 1. …