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Fig. 3 | BMC Infectious Diseases

Fig. 3

From: Genetic and biological characteristics of avian influenza virus subtype H1N8 in environments related to live poultry markets in China

Fig. 3

Plaque formation in MDCK cells with or without TPCK-treated trypsin. A/Environment/Fujian/85144/2014(H1N8) and A/Brisbane/59/2007(H1N1) were inoculated into MDCK cells with or without TPCK-treated trypsin (2 μg/ml) at 37 °C overnight. Both viruses produced clear plaques with trypsin present, while no plaques were produced without trypsin

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