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'Reported as of June 30, 1985. Does not include 66 cases diagnosed prior to 1981. Of those, 56 are known dead.

As of June 30, 1985, physicians and health departments in the United States reported 9,057 cases (8,939 in adults and 118 in children) diagnosed through December 31, 1984, that met the surveillance definition for acquired immunodeficiency syndrome (AIDS).

Of these 9,057 cases, 66 (1%) were diagnosed before 1981, 257 (3%) were diagnosed in 1981, 981 (11%) in 1982, 2,683 (30%) in 1983, and 5,070 (56%) in 1984. Pneumocystis carinii pneumonia (PCP) was the most commonly reported opportunistic disease among AIDS patients. Fifty-four percent of patients had PCP without Kaposi's sarcoma (KS), 22% had KS without PCP, 7% had both PCP and KS, and 17% had other opportunistic diseases without either KS or PCP. Of the 9,057 patients, 5,158 (57%) are known to have died (57% of the adults and 75% of the children). Seventy-six percent of the patients diagnosed before 1983 have died. Of the patients who have died, 85% were diagnosed with opportunistic diseases other than KS alone. Fifty-nine percent of the patients are white; 25%, black; 14%, Hispanic; and the remainder, Asians, American Indians, or persons of unknown origin.

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Cases were reported from 46 states, the District of Columbia, Puerto Rico, and the Marshall and Virgin Islands. New York City reported 35% of the cases; San Francisco, 14%; Los Angeles, 11%; Miami, 4%; and Newark, 3%.

Of the 8,939 adult patients reported with AIDS, 89% were 20-49 years of age; 47% were 30-39 years old. Groups with an increased incidence of AIDS were homosexual and bisexual males (73%) and past or present intravenous (IV) drug abusers (17%). Other patient groups with an increased incidence of AIDS included persons who had received treatment for hemophilia or another coagulation disorder (1%), heterosexual partners of persons with AIDS or at increased risk for AIDS (1%), and recipients of blood transfusions (1%). The remaining 7% of patients were placed into the "other/unknown" patient group. This group includes patients born in countries in which most AIDS cases have not been associated with known risk factors (3%) and other patients who had no identifiable risk factor or for whom risk-factor information was absent or incomplete (4%). Six percent of all reported adult patients were female. The highest incidence of cases in adult females was among IV drug abusers (55%).

Among the 118 children reported with AIDS, 86 (73%) had at least one parent with AIDS or at increased risk of developing AIDS, 18 (15%) had received blood transfusions, five (4%) had a history of treatment for hemophilia, and the remaining nine (8%) had no identifiable risk or risk-factor information was absent or incomplete.

Fifty-nine percent of the children were under 1 year old at the time of diagnosis. Forty-one percent were female. Although pediatric cases were reported from 19 states, four states-New York, Florida, California, and New Jersey-accounted for 81% of all cases.

ARBOVIRAL INFECTIONS (of the central nervous system) - Cases due to St. Louis encephalitis virus, by month, United States, 1971-1984

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Active surveillance of arboviral infections of the central nervous system is maintained by the Division of Vector-Borne Viral Diseases. In 1984, 129 cases were reported: Eastern equine encephalitis, five cases; Western equine encephalitis, two cases; California serogroup viral infections, 90 cases; and St. Louis encephalitis (SLE), 32 cases. Twenty-six SLE cases, one fatal, occurred in an outbreak centered in Los Angeles, California.

ARBOVIRAL INFECTIONS (of the central nervous system) serogroup viruses, by month, United States, 1971-1984

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Cases due to California

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ARBOVIRAL INFECTIONS (of the central nervous system) — Cases due to Western and Eastern equine encephalitis viruses, by month, United States, 1971-1984

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