1977:"俄羅斯型流感"H1N1感染人類

1977：“俄羅斯型流感”H1N1感染人類1977: "Russian flu" H1N1 Infects Humans

在中國北方分析出的這種病毒與1957年以前傳播的病毒相似，因此，1957年以前出生的人一般都有了抵抗力，而在那年之後出生的兒童和年輕人由於沒有預先的免疫力而缺乏抵抗力。1978年這種病毒在世界各地傳播開來，其中包括美國。這種病主要發生在孩子們身上，因此，這次流感沒被看成是真正的大流行。1977-78年的流感季節，還沒有及時地生產出控制病毒的疫苗，但是，1978-79年的流感疫苗就包含了這種病毒的疫苗。
Isolated in northern China, this virus was similar to the virus that spread before 1957. For this reason, individuals born before 1957 were generally protected, however children and young adults born after that year were not because they had no prior immUnity. By January 1978, the virus had spread around the world, including the United States. Because illness occurred primarily in children, this event was not considered a true pandemic. Vaccine containing this virus was not produced in time for the 1977-78 season, but the virus was included in the 1978-79 vaccine.