Oral Sex Linked to Increased Toxoplasma gondii Infection Risk in HIV/AIDS Patients

A recent study led by Dr. Rizky Fajar Meirawan has revealed a significant link between oral sexual intercourse and an increased risk of Toxoplasma gondii infection in individuals with Human Immunodeficiency Virus (HIV) and Acquired Immunodeficiency Syndrome (AIDS). The research, conducted on 197 patients undergoing antiretroviral therapy in the Jakarta, Bekasi, Bogor, and Depok areas of Indonesia, highlights the importance of safe sexual practices within this vulnerable population.

The Connection Between Oral Sex and T. Gondii

The study found that the risk of T. Gondii infection was up to six times higher in HIV/AIDS patients who engaged in oral sex. T. Gondii, a common parasite, can be found in the cyst phase (bradizoites and tachyzoites) within ejaculatory fluid and semen. Unprotected oral sex can serve as a transmission route, as the parasite can be ingested during the act.

Why is T. Gondii Infection Dangerous for People with HIV/AIDS?

T. Gondii infection is considered an opportunistic infection, meaning it takes advantage of a weakened immune system. In individuals with HIV/AIDS, this infection can lead to severe complications, including:

• Meningitis: Inflammation of the membranes surrounding the brain and spinal cord.
• Encephalitis: Inflammation of the brain itself.
• Ocular Toxoplasmosis: An infection of the eye that can cause vision loss.

While T. Gondii infection may not cause noticeable symptoms in individuals with a healthy immune system (immunocompetent), it can be life-threatening for those with compromised immunity, particularly those with low CD4 cell counts (below 200 cells per µl).

Importance of Early Screening and Treatment

Dr. Meirawan emphasizes the importance of screening for T. Gondii infection in HIV patients, especially when their immune systems are still relatively strong (CD4 levels above 200 cells/µl). Early diagnosis and treatment significantly improve the chances of successful management of the infection and reduce the risk of severe complications like meningitis, encephalitis, and ocular toxoplasmosis.

Recommendations for Prevention and Education

Based on his research, Dr. Rizky Fajar Meirawan recommends that the Ministry of Health and all parties involved in HIV control programs in Indonesia promote healthy sexual behaviors, particularly regarding oral sex. The use of condoms during oral sex and thoroughly cooking ruminant meat are two steps that can reduce the risk of Toxoplasma gondii infection in HIV patients.

Research Details and Funding

The research team included Lysa Veterini from Nahdlatul Ulama University of Surabaya, Desy Sulistiyorini from Universitas Indonesia Maju, and Betta Mega Oktaviana, a medical student from Nahdlatul Ulama University of Surabaya. The study was funded by a novice lecturer research grant from the Ministry of Higher Education, Science and Technology (Kemendiktisaintek) for the 2024 budget year and published in the Scopus and Web of Science indexed Journal of Biological Research – Bulletin of the Italian Society in Biology Sperimentale.