The Advantages of the Virus Sample Swab Virus sampling swab: for the flu, swine flu, avian flu, hand, foot and mouth and other respiratory and intestinal virus nasal and throat sampling. product composition: ⑴ nylon flocking. Third, the product features: ① the use of international and convenient sterilization of the Zhisu packaging. ② γ-ray sterilization, to ensure that sterile. ③ …