EB , F , A , FA .
2 – 3 feather shafts (recently extracted), swab without medium (cloaca), blood (1 – 2 drops on a filter paper, viraemia!), faeces, tissue (bursa Fabricii, spleen, liver)
feather, blood (Edta) , swab (cloaca), faeces, tissue (e.g. Bursa fabricii, liver, spleen)
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