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Chronic, Acute, and Reactivated HIV Infection in Humanized Immunodeficient Mouse Models
Published on: December 3, 2019
[New diagnosis of HIV infection in children]
Sara Guillén1, Luis Prieto, Santiago Jiménez de Ory
1Servicio de Pediatría, Hospital Universitario de Getafe, Getafe, Madrid, España. sguillenmartin@hotmail.com
Insights
The study found no clinical or immunological differences between immigrant and Spanish children with HIV. However, HIV-1 subtypes differed significantly, with non-B subtypes prevalent in children from sub-Saharan Africa.
Area of Science:
- Pediatric Infectious Diseases
- Virology
- Epidemiology
Context:
- The demographic landscape of pediatric HIV infection in Madrid has shifted, with a notable increase in children of immigrant origin.
- Understanding the epidemiological and clinical characteristics of this growing cohort is crucial for effective public health strategies.
Purpose:
- To evaluate the epidemiological and clinical characteristics of newly diagnosed HIV-1 infected children in the Community of Madrid.
- To describe the different subtypes of HIV-1 prevalent in this pediatric population.
- To compare clinical outcomes and treatment responses between Spanish and immigrant children.
Summary:
- A total of 141 new HIV diagnoses in children were analyzed between 1997 and 2009, showing a significant increase in immigrant children over time, with origins shifting from Latin America to sub-Saharan Africa.
- No significant differences were observed between Spanish and immigrant children regarding age at diagnosis, clinical stage, viral load, or CD4 counts.
- Immigrant children showed a better viral response to highly active antiretroviral treatment (HAART). Phylogenetic analysis revealed distinct HIV-1 subtypes, with non-B subtypes predominantly found in children from sub-Saharan Africa.
Impact:
- This research highlights the importance of considering diverse HIV-1 subtypes in pediatric populations, particularly in regions with increasing immigration.
- Findings suggest that while clinical management may be similar, subtype diversity necessitates tailored approaches in diagnostics and potentially treatment strategies.
- The study underscores the need for ongoing surveillance and research into the evolving epidemiology of pediatric HIV infection in diverse populations.
Introduction:
The number of children of immigrant origin in the last few years has increased the cohort of HIV-infected children in the Community of Madrid. The objectives of the study were to evaluate the epidemiological and clinical characteristics of the new diagnosed children and describe the different subtypes of HIV-1.
Patients And Methods:
The new diagnosed children were analysed from the year 1997, divided into 3 periods: P1 (1997-2000), P2 (2001-2004), P3 (2005-2009). The regions and countries of origin, the clinical, immune and viral characteristics, as well as the response to treatment were analysed. The subtypes of HIV-1 were evaluated by phylogenetic analysis of protease genes and reverse transcriptase.
Results:
We identified 141 new diagnoses of HIV infection, the percentage of immigrant origin in P1 was (22.5%), P2 (50%) and P3 (68%). The origin had changed from Latin America in P1 to sub-Saharan Africa in P3. There were no differences between Spanish and immigrant children in the age at diagnosis, the CDC clinical stage A/B/C, viral load, percentage of CD4 at diagnosis and actual. Better viral response was more likely in immigrants after the first regimen of HAART (Highly active antiretroviral treatment) independently of the treatment received. A total of 66 subtypes were obtained, 24% were subtypes non-B (56% recombinants forms). All subtypes of Spanish children (43) and Latin American (5) were subtypes B, and all the children from sub-Saharan Africa (14) were subtypes non-B.
Conclusion:
There were no differences between immigrants and Spanish children infected by HIV, except the different subtypes of HIV-1.
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