Hospital purchasing flu swab manufacturers Packaging instructions for nasopharyngeal swabs: 一: Use nasal sampling swab 50 指示 1. Estimate the volume of this product needed to completely immerse the sample (1g组织需要10mL). 2. 标记收集管并添加本产品的估计量. 3. Cut the sample into pieces with a thickness less than 0.5cm at …