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Table 2 Pathogens isolated from outer surface of masks

From: Contamination by respiratory viruses on outer surface of medical masks used by hospital healthcare workers

Viruses Positive in one test (Total tests 110) Positive in three tests & sample location (Total test 38)
Adenovirusa 6 1 middle section of mask
Bocavirusa 2 0
Human metapneumovirusa 0 1 right section of mask
Influenza B & type 4 parainfluenza virusb 1 0
Influenza H1N1 & influenza Bc 1 0
Respiratory syncytial virusa 1 1 middle section of mask
Type 2 parainfluenza virusa 0 1 right section of mask
Total positive (Positivity rate) 11 (9.4%) 4 (9.8%)
  1. a Isolated from internal medicine ward, b isolated from pediatric ward c isolated from respiratory ward