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Volume 26, Number 9—September 2020
Research

Incidence and Seroprevalence of Avian Influenza in a Cohort of Backyard Poultry Growers, Egypt, August 2015–March 2019

Mokhtar R. Gomaa1, Amira S. El Rifay1, Dina Abu Zeid, Mona A. Elabd, Eman Elabd, Ahmed Kandeil, Noura M. Abo Shama, Mina N. Kamel, Mohamed A. Marouf, Ahmed Barakat, Samir Refaey, Amal Naguib, Pamela P. McKenzie, Richard J. Webby, Mohamed A. AliComments to Author , and Ghazi KayaliComments to Author 
Author affiliations: National Research Centre, Giza, Egypt (M.R. Gomaa, A.S. El Rifay, D. Abu Zeid, M.A. Elabd, E. Elabd, A. Kandeil, N.M. Abo Shama, M.N. Kamel, M.A. Marouf, M.A. Ali); Ain Shams University, Cairo, Egypt (A. Barakat); Ministry of Health and Population, Cairo (S. Refaey, A. Naguib); St. Jude Children’s Research Hospital, Memphis, Tennessee, USA (P.P. McKenzie, R.J. Webby); Human Link, Hazmieh, Lebanon (G. Kayali); University of Texas Health Sciences Center at Houston, Houston, Texas, USA (G. Kayali)

Main Article

Table 5

Seroprevalence of antibodies against influenza A virus subtypes H5N1, H5N8, H9N2, H1N1, and H3N2 in participants in a study of avian influenza among backyard poultry growers, Egypt, August 2015–March 2019

Period and influenza virus subtype
 No. (%)
Baseline period, August 2015–March 2017
H5N1 positive 9 (0.4)
H5N1 negative 2,388 (99.6)
H5N8 positive 0
H5N8 negative 2,397 (100.0)
H9N2 positive 266 (11.1)
H9N2 negative 2,131 (88.9)
H1N1 positive 656 (29.5)
H1N1 negative 1,569 (70.5)
H3N2 positive 1,115 (49.3)
H3N2 negative
 1,148 (50.7)
Follow-up period 1, April 2017–March 2018
H5N1 positive 4 (0.2)
H5N1 negative 2,046 (99.8)
H5N8 positive 0
H5N8 negative 2,046 (100.0)
H9N2 positive 3 (0.1)
H9N2 negative 2,043 (99.9)
H1N1 positive 612 (29.8)
H1N1 negative 1,439 (70.2)
H3N2 positive 1,034 (50.5)
H3N2 negative 1,015 (49.5)

*Totals do not add up to 2,402 at baseline period or 2,189 at follow-up period 1 because of missed serum sample collection or insufficient sample volume.

Main Article

1These authors contributed equally to this article.

Page created: June 15, 2020
Page updated: August 18, 2020
Page reviewed: August 18, 2020
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