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Volume 23, Number 8—August 2017
Dispatch

Influenza D Virus in Animal Species in Guangdong Province, Southern China

Shao-Lun Zhai1Comments to Author , He Zhang1, Sheng-Nan Chen1, Xia Zhou, Tao Lin, Runxia Liu, Dian-Hong Lv, Xiao-Hui Wen, Wen-Kang Wei1, Dan Wang, and Feng LiComments to Author 
Author affiliations: South Dakota State University, Brookings, South Dakota, USA (S.-L. Zhai, S.-N. Chen, T. Lin, R. Liu, D. Wang, F. Li); Guangdong Academy of Agricultural Sciences, Guangzhou, China (S.-L. Zhai, D.-H. Lv, X.-H. Wen, W.-K. Wei); South China Agricultural University, Guangzhou (H. Zhang, X. Zhou)

Main Article

Table

Animal species, location, sample data, and detection rate of influenza D virus, Guangdong Province, China*

Animal species and farm Farm type† Farm location No. animals Age range of animals Sample type No. positive/no. samples Detection rate, %
Holstein dairy cattle
A Not all-in-all-out Guangzhou: Tianhe 2,000 3–5 y Nasal swab 14/86‡ 16.3
A Not all-in-all-out Guangzhou: Tianhe 2,000 3–5 y Serum 10/94‡ 10.6
B Not all-in-all-out Guangzhou: Luogang 800 3–6 y Nasal swab 6/70‡ 8.57
B Not all-in-all-out Guangzhou: Luogang 800 3–6 y Serum 5/99‡ 5.05
C
Not all-in-all-out
 Guangzhou: Tianhe
 175
 2–5 y
 Nasal swab
 1/50§
 2
American Landrace pig
D Not all-in-all-out Guangzhou: Huadu 200 10–15 wks Lung 4/10‡ 40
E All-in-all-out Heyuan: Yuancheng 1,000 5–5 wks Nasal swab 4/10‡ 40
E All-in-all-out Heyuan: Yuancheng 1,000 3–5 wks Lung 1/8‡ 12.5
F All-in-all-out Jiangmen: Kaiping 800 8–20 wks Nasal swab 3/9‡ 30
F All-in-all-out Jiangmen: Kaiping 800 8–20 wks Lung 8/27‡ 29.6
G
All-in-all-out
 Heyuan: Dongyuan
 600
 9–15 wks
 Nasal swab
 1/50§
 2
Native hybrid white goat
H Not all-in-all-out Guangzhou: Zengcheng 200 0.5–5 y Serum 7/25‡ 28
I
Not all-in-all-out
 Guangzhou: Luogang
 300
 2–4 y
 Serum
 20/55¶
 36.4
Native hybrid black goat
J Not all-in-all-out Qingyuan: Jiangkou 150 1–3 y Rectal swab 1/8# 12.5
K
Not all-in-all-out
 Jiangmen: Enping
 500
 1–4 y
 Nasal swab
 0/50§
 0
Asian buffalo
L Not all-in-all-out Guangzhou: Nansha 150 3–5 y Serum 2/26¶ 7.7
M Not all-in-all-out Guangzhou: Panyu 180 3–6 y Serum 1/25¶ 4
N
Not all-in-all-out
 Qingyuan: Yingde
 400
 1–4 y
 Nasal swab
 0/50§
 0
Native yellow cattle
O Not all-in-all-out Qingyuan: Qingxin 200 2–5 y Nasal swab 4/55‡ 7.3
P Not all-in-all-out Qingyuan: Fogang 230 1–3 y Nasal swab 0/50§ 0

*Feeding type of farms A–G was in captivity (poor biosecurity and high density). Feeding type of farms H–K and N–P was free grazing on the hills in the daytime and in captivity (poor biosecurity and high density) in the nighttime. Feeding type of farms L and M was free grazing in wetland in the daytime and in captivity (poor biosecurity and high density) in the nighttime.
†All-in-all-out is a strategy for the control of infectious disease. The barn is emptied of all animals and the accommodation is cleaned and disinfected and then refilled, all on 1 day.
‡These animals had severe respiratory diseases with a 10%–30% mortality rate, mainly characterized by expiratory dyspnea and abdominal respiration.
§These animals were asymptomatic.
¶These animals had severe reproductive disorders with a 60%–70% abortion rate.
#These animals had severe diarrheal disease, characterized by watery diarrhea, limb weakness, and nearly dying.

Main Article

1These authors contributed equally to this article.

Page created: July 17, 2017
Page updated: July 17, 2017
Page reviewed: July 17, 2017
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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