Skip to main content

Advertisement

Table 2 Monthly results of surveillance for H7N9 virus at different premises of Zhejiang Province, China, March 2013-February 2015

From: Human infection and environmental contamination with Avian Influenza A (H7N9) Virus in Zhejiang Province, China: risk trend across the three waves of infection

Month Positive rate, % (positive specimens/total specimens)
Total Live poultry markets Poultry rearing farms Concentrated areas of backyard poultry farms Slaughtering and processing plants Habitats for migratory birds Others
2013–3 0.0 (0/119) 0.0 (0/77) 0.0 (0/24) 0.0 (0/10) 0/0 0/0 0.0 (0/8)
2013–4 1.1 (11/1045) 2.3 (7/303) 1.0 (4/382) 0.0 (0/201) 0.0 (0/17) 0.0 (0/59) 0.0 (0/83)
2013–5 0.0 (0/96) 0/0 0.0 (0/46) 0.0 (0/30) 0/0 0.0 (0/20) 0/0
2013–6 0.0 (0/60) 0.0 (0/19) 0.0 (0/35) 0.0 (0/6) 0/0 0/0 0/0
2013–7 0.0 (0/57) 0.0 (0/20) 0.0 (0/31) 0/0 0/0 0/0 0.0 (0/6)
2013–8 0.0 (0/62) 0.0 (0/43) 0.0 (0/12) 0/0 0/0 0.0 (0/7) 0/0
2013–9 0.0 (0/60) 0.0 (0/49) 0.0 (0/11) 0/0 0/0 0/0 0/0
Total of the 1st wave 0.7 (11/1499) 1.4 (7/511) 0.7 (4/541) 0.0 (0/247) 0.0 (0/17) 0.0 (0/86) 0.0 (0/97)
2013–10 2 (6/301) 3.1 (6/195) 0.0 (0/75) 0.0 (0/25) 0/0 0/0 0.0 (0/6)
2013–11 1.1 (4/372) 1.5 (4/266) 0.0 (0/62) 0.0 (0/19) 0/0 0.0 (0/5) 0.0 (0/20)
2013–12 3.5 (11/318) 4.2 (11/262) 0.0 (0/30) 0/0 0.0 (0/8) 0.0 (0/5) 0.0 (0/13)
2014–1 10.2 (259/2551) 11.3 (259/2299) 0.0 (0/105) 0.0 (0/133) 0.0 (0/2) 0.0 (0/9) 0.0 (0/3)
2014–2 2.7 (29/1073) 4.0 (29/732) 0.0 (0/141) 0.0 (0/146) 0.0 (0/6) 0/0 0.0 (0/48)
2014–3 1.6 (9/554) 3.7 (9/242) 0.0 (0/146) 0.0 (0/114) 0.0 (0/18) 0.0 (0/5) 0.0 (0/29)
2014–4 1.1 (6/545) 3.1 (6/194) 0.0 (0/168) 0.0 (0/164) 0.0 (0/5) 0.0 (0/14) 0/0
2014–5 0.3 (2/714) 0.7 (2/303) 0.0 (0/83) 0.0 (0/279) 0.0 (0/5) 0.0 (0/14) 0.0 (0/30)
2014–6 3.4 (10/290) 6.8 (8/118) 2.6 (2/78) 0.0 (0/53) 0.0 (0/25) 0.0 (0/16) 0/0
2014–7 1.7 (6/358) 2.7 (6/219) 0.0 (0/72) 0.0 (0/22) 0.0 (0/10) 0.0 (0/9) 0.0 (0/26)
2014–8 0.0 (0/519) 0.0 (0/298) 0.0 (0/104) 0.0 (0/58) 0.0 (0/32) 0.0 (0/24) 0.0 (0/3)
2014–9 2.1 (9/419) 3.8 (9/234) 0.0 (0/80) 0.0 (0/43) 0.0 (0/18) 0.0 (0/22) 0.0 (0/22)
2014–10 3.9 (25/633) 5.9 (25/424) 0.0 (0/119) 0.0 (0/18) 0.0 (0/12) 0.0 (0/11) 0.0 (0/49)
Total of the 2nd wave 4.3 (376/8647) 6.5 (374/5786) 0.2 (2/1263) 0.0 (0/1074) 0.0 (0/141) 0.0 (0/134) 0.0 (0/249)
2014–11 3(17/572) 5.0 (17/343) 0.0 (0/69) 0.0 (0/18) 0.0 (0/62) 0.0 (0/45) 0.0 (0/35)
2014–12 2.6(21/808) 3.8 (19/499) 0.0 (0/142) 0.0 (0/70) 8.0 (2/25) 0.0 (0/44) 0.0 (0/28)
2015–1 20.2(242/1197) 24.3 (198/815) 0.0 (0/151) 0.0 (0/32) 17.8 (13/73) 0.0 (0/6) 25.8 (31/120)
2015–2 13.5(201/1484) 16.8 (170/1012) 0.0 (0/127) 1.5 (2/130) 7.7 (2/26) 0.0 (0/8) 14.9 (27/181)
Total of the 3rd wave 11.8 (481/4061) 15.1 (404/2669) 0.0 (0/489) 0.8 (2/250) 9.1 (17/186) 0.0 (0/103) 15.9 (58/364)
Total 6.1(868/14207) 8.8 (785/8966) 0.3 (6/2293) 0.1 (2/1571) 4.9 (17/344) 0.0 (0/323) 8.2 (58/710)