... Chittaganpitch3, Sunthareeya Waicharoen3, Yuta Kanai1,2, Gui-Rong Bai1,2, Masanori Kameoka1,2, Naokazu Takeda1,2, Kazuyoshi Ikuta1,2 and Pathom Sawanpanyalert3AbstractSince ... slowly in MDCK cells,producing small plaques.As indicated by lethality in embryonated eggs, viralRNA copy in allantoic fluid, and virus titer measured byplaque assay, our results demonstrated ... P: Transmission of influenza virus in a mammalian host is increased by PB2 amino acids 627 K or 627E/701N. PLoS Pathog 2009, 5:e1000252.23. Le QM, Sakai-Tagawa Y, Ozawa M, Ito M, Kawaoka Y: ...