• 1
    Meijer A, Bosman A, Van De Kamp EE, Wilbrink B, Van Beest Holle Mdu R, Koopmans M. Measurement of antibodies to avian influenza virus A(H7N7) in humans by hemagglutination inhibition test. J Virol Methods 2006; 132:113120.
  • 2
    Stephenson I, Wood JM, Nicholson KG, Charlett A, Zambon MC. Detection of anti-H5 responses in human sera by HI using horse erythrocytes following MF59-adjuvanted influenza A/Duck/Singapore/97 vaccine. Virus Res 2004; 103:9195.
  • 3
    Stephenson I, Das RG, Wood JM, Katz JM. Comparison of neutralising antibody assays for detection of antibody to influenza A/H3N2 viruses: an international collaborative study. Vaccine 2007; 25:40564063.
  • 4
    Thorson A, Petzold M, Nguyen TK, Ekdahl K. Is exposure to sick or dead poultry associated with flulike illness?: a population-based study from a rural area in Vietnam with outbreaks of highly pathogenic avian influenza. Arch Intern Med 2006; 166:119123.
  • 5
    Hayden F, Croisier A. Transmission of avian influenza viruses to and between humans. J Infect Dis 2005; 192:13111314.
  • 6
    Vong S, Coghlan B, Mardy S et al. Low frequency of poultry-to-human H5NI virus transmission, southern Cambodia, 2005. Emerg Infect Dis 2006; 12:15421547.
  • 7
    Capua I, Marangon S, Cancellotti FM. The 1999–2000 avian influenza (H7N1) epidemic in Italy. Vet Res Commun 2003; 27(Suppl. 1):123127.
  • 8
    Bridges CB, Lim W, Hu-Primmer J et al. Risk of influenza A (H5N1) infection among poultry workers, Hong Kong, 1997–1998. J Infect Dis 2002; 185:10051010.
  • 9
    Gill JS, Webby R, Gilchrist MJ, Gray GC. Avian influenza among waterfowl hunters and wildlife professionals. Emerg Infect Dis 2006; 12:12841286.
  • 10
    Myers KP, Setterquist SF, Capuano AW, Gray GC. Infection due to 3 avian influenza subtypes in United States veterinarians. Clin Infect Dis 2007; 45:49.
  • 11
    Puzelli S, Di Trani L, Fabiani C et al. Serological analysis of serum samples from humans exposed to avian H7 influenza viruses in Italy between 1999 and 2003. J Infect Dis 2005; 192:13181322.
  • 12
    World Health Organization. Avian Influenza (“bird flu”) – Fact Sheet, Vol. 2007. Geneva, Switzerland: World Health Organization, 2006.
  • 13
    Gray G, McCarthy T, Capuano A et al. Swine workers and Swine influenza virus. Emerg Infect Dis 2007; 13:18711878.
  • 14
    Alavanja MC, Sandler DP, McMaster SB et al. The Agricultural Health Study. Environ Health Perspect 1996; 104:362369.
  • 15
    Myers KP, Olsen CW, Setterquist SF et al. Are swine workers in the United States at increased risk of infection with zoonotic influenza virus? Clin Infect Dis 2006; 42:1420.
  • 16
    World Health Organization. Recommendations and Laboratory Procedures for Detection of Avian Influenza A (H5N1) Virus in Specimens from Suspected Human Cases., Vol. 2007. Geneva, World Health Organization, 2007.
  • 17
    Rowe T, Abernathy RA, Hu-Primmer J et al. Detection of antibody to avian influenza A (H5N1) virus in human serum by using a combination of serologic assays. J Clin Microbiol 1999; 37:937943.
  • 18
    Ramirez A, Capuano AW, Wellman DA, Lesher KA, Setterquist SF, Gray GC. Preventing zoonotic influenza virus infection. Emerg Infect Dis 2006; 12:9961000.
  • 19
    McCullagh P. Regression models for ordinal data. J R Stat Soc Ser B 1980; 42:109142.
  • 20
    Capuano A, Dawson J, Gray G. Maximizing power in seroepidemiological studies through use of the proportional odds model. Influenza Resp Viruses 2007; 3:8793.
  • 21
    Normile D. Mild Illnesses confound researchers. Science 2005; 307:27.
  • 22
    Katz JM, Lim W, Bridges CB et al. Antibody response in individuals infected with avian influenza A (H5N1) viruses and detection of anti-H5 antibody among household and social contacts. J Infect Dis 1999; 180:17631770.
  • 23
    Ortiz JR, Katz MA, Mahmoud MN et al. Lack of evidence of avian-to-human transmission of avian influenza A (H5N1) virus among poultry workers, Kano, Nigeria, 2006. J Infect Dis 2007; 196:168591.
  • 24
    Hinjoy S, Puthavathana P, Laosiritaworn Y et al. Low frequency of infection with avian influenza virus (H5N1) among poultry farmers, Thailand, 2004. Emerg Infect Dis 2008; 14:499501.
  • 25
    Gray GC, Trampel DW, Roth JA. Pandemic influenza planning: shouldn’t swine and poultry workers be included? Vaccine 2007; 25:43764381.
  • 26
    Gray GC, Baker WS. The importance of including swine and poultry workers in influenza vaccination programs. Clin Pharmacol Ther 2007; 82:638641.
  • 27
    Saenz RA, Hethcote HW, Gray GC. Confined animal feeding operations as amplifiers of influenza. Vector Borne Zoonotic Dis 2006; 6:338346.
  • 28
    Treanor JJ, Campbell JD, Zangwill KM, Rowe T, Wolff M. Safety and immunogenicity of an inactivated subvirion influenza A (H5N1) vaccine. N Engl J Med 2006; 354:13431351.