Influenza C in Japan.

The name•ginfluenza C •hhas first been given by Francis and his colleagues to a case of influenza in Ann Arbor, Michigan, in 1950, from which theyy isolated an influenza-like virus strain JJ, different, however, antigenically from any known type of influenza virus.) The Ann Arbor workers are, however, not the first discoverers of this type of virus. In 1947, Taylor2) isolated a strain of virus called 1233 which was found identical with the JJ strain later by Ann Arbor workers. Taylor did not conclude that this virus might have any importance in