Global Epidemiology of Sexually Transmitted Infections: A Continental Perspective

Background: Sexually transmitted infections (STIs) continue to pose a substantial public-health challenge globally, resulting in considerable morbidity, death, and socioeconomic impact. Notwithstanding progress in preventative strategies, millions of new illnesses arise each year, with geographical disparities shaped by healthcare accessibility, cultural practices, and surveillance capabilities. Methods: This narrative review consolidates evidence from international health reports, peer-reviewed studies, and surveillance data to analyse the epidemiology, health consequences, and public-health concerns associated with STIs. A continental perspective was employed to emphasise variations in prevalence, predominant infections, and intervention tactics throughout Africa, Asia, Europe, North America, South America, and Oceania. Results: Africa endures the worst burden of HIV and syphilis, exacerbated by restricted access to healthcare. Asia is experiencing an increase in the prevalence of gonorrhoea and chlamydia, frequently overlooked due to underreporting and cultural shame. Europe exhibits efficacy in HPV vaccination and comprehensive surveillance; however, syphilis is resurging. North America exhibits consistently elevated rates of chlamydia and gonorrhoea, with notable differences among ethnic groups. South America faces concerns with HIV prevalence, insufficient awareness, and antimicrobial resistance, while Oceania confronts distinct issues within indigenous communities. STIs also result in infertility, problems during pregnancy, neonatal morbidity, malignancy, stigma, and considerable economic losses. Antimicrobial resistance in Neisseria gonorrhoeae is a pressing global menace. Conclusion: A comprehensive multidisciplinary strategy highlighting preventive education, immunisation, early detection, enhanced surveillance, and culturally attuned interventions is crucial for mitigating the global burden of STIs. Addressing healthcare disparities worldwide is essential for attaining equitable sexual health outcomes and promoting global health objectives.