Volume 8, Number 8—August 2002
Research
Serologic Evidence of H1 Swine Influenza Virus Infection in Swine Farm Residents and Employees
Table 2
Reference influenza A viruses |
||||
---|---|---|---|---|
Participants | A/Johannesburg/82/96 (A/JOH) (human H1N1 virus) | A/Nanchang/933/95 (A/NAN) (human H3N2 virus) | A/Nebraska/01/92 (A/NEB) (zoonotic swine H1N1 virus) | A/Swine/Indiana/1726/88 (Sw/IND) (swine H1N1 virus) |
Farm participants | 15.3 | 8.6 | 13.2a | 15.7a |
Urban control participants | 14.2 | 8.0 | 5.1 | 5.4 |
ap>0.0001 (Wilcoxon rank sum analysis with normal approximation).
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