EID Journal Home > Volume 17, Number 6–June 2011
Volume 17, Number 6–June 2011
Human Infection with Avian Influenza Virus, Pakistan, 2007
Mukhtiar Zaman, Saadia Ashraf, Nancy A. Dreyer, and Stephen Toovey
Author affiliations: Khyber Teaching Hospital, Peshawar, Pakistan (M. Zaman, S. Ashraf); Outcome Sciences, Cambridge, Massachusetts, USA (N.A. Dreyer); and University College and Royal Free Medical School, London, UK (S. Toovey)
Suggested citation for this article
Human infection with avian influenza (H5N1) virus raises concern for the possibility of a pandemic. We report 20 cases, which ranged from asymptomatic to fatal, in Pakistan in 2007. These cases indicate human-to-human-to-human transmission of this virus, and the number of cases may be higher than realized.
Evidence of human-to-human transmission of influenza A (H5N1) virus raises concern over a possible pandemic (1). Previous epidemiologic investigation of the outbreak of influenza (H5N1) among persons in the Northwest Frontier Province of Pakistan (Figure 1) in 2007 found 5 cases—3 confirmed, 1 asymptomatic, and 1 probable—as defined by the World Health Organization (WHO) (2). We report a larger set of 20 cases during this outbreak in Pakistan, supporting human-to-human-to-human transmission.
Human Infection with Avian Influenza Virus, Pakistan, 2007 | CDC EID
Suggested Citation for this Article
Zaman M, Ashraf S, Dreyer NA, Toovey S. Human infection with avian influenza virus, Pakistan, 2007. Emerg Infect Dis [serial on the Internet]. 2011 Jun [date cited].
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