2.ਏਡਜ਼ ਦਾ ਸਭ ਤੋਂ ਪਹਿਲਾਂ ਪਤਾ ਕਦੋਂ ਲੱਗਾ ?
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The earliest known case of infection with HIV-1 in a human was detected in a blood sample collected in 1959 from a man in Kinshasa, Democratic Republic of the Congo.
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