Figure 2.

Highly pathogenic avian influenza virus isolation from air samples collected using cyclone air sampler during simulated slaughter of infected chickens (A) and ducks (B) in study of airborne transmission of highly pathogenic influenza virus during processing of infected poultry. Detection of virus was attempted in 3 different airborne particle sizes. Error bars indicate virus recovery from >2 repeats per run. Dashed lines indicate limit of detection by virus isolation of 3.6 log₁₀ EID₅₀/m³ air sampled. Isolate names are as given in Table 1.