Acquired Immune Deficiency Syndrome (AIDS) was diagnosed in the United States in the late 1970s. (Para.1)
Meaning: AIDS was discovered by doctors in the last few years of the 1970's.
diagnose: vt. decide what illness a person has; discover the nature (a disease) by making a careful examination
Note: To talk about a doctor's finding someone ill with a certain disease we often say "diagnose with."
Nearly half of those diagnosed with the virus are blacks and Latinos. (Para.2) 被诊断感染艾滋病病毒的人有一半是黑人和来自拉丁美洲的人。
Women will soon make up 80 percent of those diagnosed with HIV. (Para.11) 妇女将占感染艾滋病病毒人口的80%。
But when we decide what illness a person has, we say "diagnose as."
The doctor diagnosed his condition as a stomach problem. 医生诊断他得了胃病。
Please pay attention to the following time expressions:
in the late 1970s: 20世纪70年代末期
in the early 1970s: 20世纪70年代初期
in the middle 1970s: 20世纪70年代中期