The plaque formation by several strains of influenza virus was investigated in a clonal cell line of procine kidney (PS, clone Y-15). Among strains tested, PR8, NWS, and Lee formed well defined plaques and showed a linear doseresponse relationship, while FMI and Adachi did not. The method of this plaque assay is reported.
About this Journal The Tohoku Journal of Experimental Medicine (TJEM) was founded in 1920
by professors of Tohoku Imperial University, Medical School.
The TJEM has been published continuously, except for the year of 1946
just after the World War II.
The TJEM is open to original articles in all branches of medical
sciences.
The TJEM also covers the fields of disaster-prevention science,
including earthquake archeology.
Subscriptions Inland subscriptions should be sent to Tohoku University Medical
Press, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, JAPAN.
Subscriptions from abroad should be addressed to MARUZEN CO., LTD.,
EXPORT DEPARTMENT,
Postal address: P.O.Box 75, Shinagawa, Tokyo 140-8799, JAPAN.
e-mail: export@maruzen.co.jp
