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Figure 1

From: Circulation of low pathogenic avian influenza (LPAI) viruses in wild birds and poultry in the Netherlands, 2006–2016

Figure 1

Collection and subtyping of wild bird and poultry samples. (A) Number of wild birds sampled and (B) number of subtyped cases of low pathogenic avian influenza (LPAI) virus detections in wild birds per wild bird species. (C) Number of poultry farms tested and (D) number of subtyped cases of LPAI virus detections in poultry farms per poultry type. All samples were collected as part of the national avian influenza (AI) surveillance program in the Netherlands, January 2006-September 2016. A case is considered subtyped if the hemagglutinin (HA) or neuraminidase (NA) subtype of the virus or the subtype-specificity of the influenza virus-specific antibodies is determined.

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