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Table 4 Clinical symptoms among patients with influenza-like illness, by influenza virus laboratory test findings, Togo, April 2010-December 2012

From: Implementation of Influenza-like illness Sentinel Surveillance in Togo

  Total n (%) Negatives n (%) Positive cases n (%) Influenza B n (%) Influenza A n (%) A/H3N2 n (%) A(H1N1) pdm09 n (%) A/Unsubtypeable n (%)
Clinical symptoms         
Fever 813 (85.1) 614 (85.3) 199 (84.3) 88 (88.0) 111 (81.6) 59 (83.1) 49 (790.0) 3 (100)
Cough 834 (87.3) 615 (85.5) 219 (92.8) 87 (87.0) 132 (97.0) 68 (95.8) 61 (98.4) 3 (100)
rhinorrhea 725 (75.9) 541 (75.2) 184 (78.0) 80 (80.0) 104 (76.4) 63 (88.7) 39 (62.9) 2 (66.7)
Sore throat 367 (38.4) 265 (36.8) 102 (43.2) 47 (47.0) 55 (40.4) 24 (33.8) 28 (45.2) 3 (100)
Headache 141 (14.8) 96 (13.3) 45 (19.1) 15 (15.0) 30 (22.0) 18 (25.3) 12 (19.3) 0 (0.0)
Difficulty of breath 175 (18.3) 144 (20.8) 31 (13.1) 14 (14.0) 17 (12.5) 11 (15.5) 6 (9.8) 0 (0.0)
Total 955 719 (75.3) 236 (24.7) 100 (10.5) 136 (14.2) 71 (7.4) 62 (6.5) 3 (0.3)