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A classification of HTLV-III infection based on 75 cases seen in a suburban community
Abstract:
Since 1981, 75 patients have been seen at our hospital with human T-cell lymphotropic virus type III (HTLV-III) infection. We have classified their clinical presentation into Groups 0 to 6. Groups 0 to 3 all have antibody to the Mr 41,000 protein of HTLV-III. Group 0 has no evident disease (9 patients), Group 1 has lymphadenopathy with or without exaggerated infection (16 patients), Group 2 has persistent lymphadenopathy with chronic hepatitis B surface antigenemia or profound hypergammaglobulinemia (7 patients), Group 3 has oral candidiasis with or without lymphadenopathy (7 patients). In Group 4 are acquired immunodeficiency syndrome (AIDS) adults or children (32 patients). Group 5 is a special classification for immunocompromised patients. Group 6 patients have lymphomas and Mr 41,000 protein antibody. Four children were classified separately. Three patients in Group 3 developed Group 4 disorders (AIDS). Four patients in Group 4 developed Group 6 disorders. HTLV-III infection spread in families (8 of 36), all from infected mothers to children. In 17 sexual partners, 6 were found to be infected. Five of 6 infected partners were homosexuals. We saw an inordinate number of transfusional AIDS (4 of 29) and 1 of 46 other disorders. Two infants also presented with severe intracranial defects, one with microcephaly and one with cranial calcifications and lucency. HTLV-III is spreading with alarming speed.
Insights
Human T-cell lymphotropic virus type III (HTLV-III) infection presents diverse clinical outcomes, from asymptomatic cases to acquired immunodeficiency syndrome (AIDS). This retrovirus is concerningly spreading within families and sexual partners.
Area of Science:
- Virology
- Immunology
- Infectious Diseases
Background:
- Human T-cell lymphotropic virus type III (HTLV-III) infection, identified in 1981, presents a spectrum of clinical manifestations.
- The virus targets the immune system, leading to various opportunistic infections and conditions.
Purpose of the Study:
- To classify the clinical presentations of HTLV-III infection in a cohort of 75 patients.
- To understand the transmission patterns and progression of HTLV-III infection.
Main Methods:
- Patient data from 1981 onwards was analyzed.
- Clinical presentations were categorized into Groups 0-6 based on symptoms and serological markers.
- Transmission routes including familial, sexual, and transfusional were investigated.
Main Results:
- Patients were classified into groups based on disease severity, ranging from no evident disease (Group 0) to acquired immunodeficiency syndrome (AIDS) (Group 4) and lymphomas (Group 6).
- Progression from less severe to more severe forms of the disease was observed (e.g., Group 3 to Group 4, Group 4 to Group 6).
- Significant transmission was noted within families (mother-to-child) and among sexual partners, particularly homosexual males. Transfusional transmission was also identified.
Conclusions:
- HTLV-III infection exhibits a wide range of clinical outcomes, necessitating careful patient classification and monitoring.
- The virus demonstrates concerning transmission rates within families and sexual networks.
- Early identification and understanding of transmission dynamics are crucial for managing the spread of HTLV-III infection.