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Table 1 The rates of respiratory virus detection among Hajj pilgrims returning to China from 2013 to 2015

From: No MERS-CoV but positive influenza viruses in returning Hajj pilgrims, China, 2013–2015

Virus detection Symptoms
2 = 44.24, P = 0.00)
Years
2 = 0.37, P = 0.83)
Total positives %
Fever Non-fever 2013 2014 2015
Influenza A 7 (44%) 27 (3.2%) 20 (3.9%) 5 (6%) 9 (3.6%) 4.0% (34/847)
Influenza B 0 14 (1.7%) 7 (1.4%) 0 7 (2.8%) 1.7% (14/847)
Metapneumo virus 4 (25%) NA 2 (0.4%) 2 (2.4%) 0 0.5% (4/847)
Respiratory syncytial virus 2 (12.5%) NA 1 (0.2%) 1 (1.2%) 0 0.2% (2/847)
Human coronavirus HKU1 1 (6.3%) NA 0 1 (1.2%) 0 0.1% (1/847)
Human coronavirus 229E 1 (6.3%) NA 0 1 (1.2%) 0 0.1% (1/847)
Human coronavirus OC43 1 (6.3%) NA 0 1 (1.2%) 0 0.1% (1/847)
Middle East respiratory syndrome coronavirus (MERS-CoV) 0 0 0 0 0 0
Total influenza (A and B) % 44% (7/16) 4.9% (41/831) 5.3% (27/511) 6.0% (5/84) 6.3% (16/252) 5.7% (48/847)
Total respiratory infection 16 41 30 11 16 6.7% (57/847)
Total 16 831 511 84 252 100% (847/847)