Acknowledgments
We thank Stephen Felt, Anthony Martin, and Shira
Shafir for discussions. The questionnaire was approved by
UCLA IRB#11-000934.We thank Shereen Galal for informatics assistance and the staff of the National Laboratory
for Quality Control of Poultry Production for serologic
typing and providing isolates. We also thank Fatma
Abdualla, Mamdouh Ahmed, Amr El Ghozlany, and the
staff of the General Organization of Veterinary Services for
assistance in the field. This work is supported by an NIH/
NSF ‘‘Ecology and Evolution of Infectious Diseases’’ award
from the Fogarty International Center 3R01-TW005869.
This research was conducted in the context of Zoonotic
Influenza Collaborative Network, led by the Fogarty
International Center, National Institutes of Health. The
Collaborative Network is supported by International
Influenza Funds from the Office of the Secretary of the
Department of Health and Human Services. This work was
also supported by a Joint Supervision Fellowship to B.M.
Sheta funded by the Cultural Affairs and Mission sectors of
the Egyptian Ministry of Higher Education. The study
sponsors had no role in the study design, in the collection,
analysis and interpretation of data; in the writing of the
manuscript; or in the decision to submit the manuscript for
publication.