Related Experiment Video
Updated: Mar 24, 2026

Ex Vivo Infection of Human Lymphoid Tissue and Female Genital Mucosa with Human Immunodeficiency Virus 1 and Histoculture
Published on: October 12, 2018
[Study on the risk of HIV transmission by heterosexual contact and the correlation factors]
Yanhui Zhang1, Ying Liang2, Yugang Bao3
1Department of Epidemiology and Biostatistics, School of Public Health, Central South University, Changsha 410008; Center for Health Education and Propaganda, Hunan Province Health and Family Planning Commission, Changsha 410005, China.
Objective:
To understand the associated factors on human immunodeficiency virus (HIV) transmission via heterosexual contact and to provide evidence for decision-maker for prevention of HIV.
Methods:
Questionnaire survey was conducted in 250 HIV-positive persons to understand their socio-demographic characteristics and sexual behavior. Meanwhile, 431 persons who had heterosexual contact with the HIV carriers were traced to their HIV infection status. The factors associated with continued HIV transmission were reviewed by case-control analysis.
Results:
Among the 432 persons, 59 were HIV-positive because of heterosexual contact. The secondary attack rate and the growth rate was 13.7% (59/431) and 0.236 (59/250), respectively. The factors associated with the spread of HIV included: the degree of knowledge on HIV/AIDS, psychological reflection after infection, the condition for condom usage among spouses, and regular sexual partners or non regular sexual partners.
Conclusion:
The secondary attack rate and the growth rate of HIV transmission by heterosexual contact are high. Improvement of the knowledge about HIV/AIDS prevention and control, enhancement of psychological education and promotion of condom usage can reduce the risk for continued HIV transmission.
More Related Videos
Related Concept Videos
Sexually Transmitted Infections
Factors Affecting the Risk of Infection
The integrity and count of the white blood cells help the body resist pathogens and fight infection. When impaired, it reduces the body's resistance to pathogens. The acidic pH levels of the gastrointestinal, genitourinary tracts, and skin...
Causality in Epidemiology
Retrovirus Life Cycles
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Hazard Ratio
For example, in a clinical trial...

