During October 2011-September 2014, we screened respiratory specimens for seasonal and avian influenza A(H5N1) virus infections among outpatients with influenza-like illness and inpatients with severe acute respiratory infection (SARI) in East Jakarta, an Indonesia district with high incidence of H5N1 virus infection among poultry. In total, 31% (1,875/6,008) of influenza-like illness case-patients and 15% (571/3,811) of SARI case-patients tested positive for influenza virus. Influenza A(H1N1)pdm09, influenza A(H3N2), and influenza B virus infections were detected in all 3 years, and the epidemic season extended from November through May. Although 28% (2,810/10,135) of case-patients reported exposure to poultry, only 1 SARI case-patient with an H5N1 virus infection was detected. Therefore, targeted screening among case-patients with high-risk poultry exposures (e.g., a recent visit to a live bird market or close proximity to sick or dead poultry) may be a more efficient routine surveillance strategy for H5N1 virus in these types of settings.
Keywords: East Jakarta; Indonesia; avian influenza A(H5N1) virus; epidemiology; humans; influenza; influenza A(H1N1)pdm09; influenza B virus; influenza in birds; influenza season; influenza-like illness; inpatients; oseltamivir; outpatients; pneumonia; public health policy; public health surveillance; respiratory infections; seasonal influenza; severe acute respiratory infection; surveillance; viruses; zoonoses.