Moreover, the ensuing increased surveillance uncovered another strain in circulation in the U.S.: A/Victoria/75 (H3N2), which spread simultaneously, also caused illness, and persisted until March.
此外，随着增强监视，又查觉另一毒株A/Victoria/75（H3N2）同时在美国传播，也引起了疾病，而且坚持至当年叁月。