Introduction Epidemiology is the study of the distribution and determinants of health-related states or events (including disease), and the application of this study to the control of diseases and other health problems. As regards HIV/AIDS, epidemiology performs a number of key public health functions, which include: describing its occurrence in populations, examining factors at individual/population […]
Billy Chi-Hin HO
MBChB, FHKAM(Community Medicine), FHKCFP
Dr HO is a specialist in Public Health Medicine. He has previously served as family physician in the Hospital Authority and Department of Health, Hong Kong. Dr HO is currently a Senior Medical & Health Officer of Special Preventive Programme, Centre for Health Protection, overseeing the surveillance office and operation of the Red Ribbon Centre.
Introduction HIV testing and counselling (HTC) serves public health in addition to clinical purposes. HTC is a dual prevention strategy which reduces risk of HIV exposure and onward transmission at the same time. Diagnosis of HIV-infected persons and referral to HIV care can achieve effective targeted prevention through appropriate treatment, behavioural interventions and identification of […]
Introduction In recent years "Chemfun" has become a colloquial term used by gay men or other men who have sex with men (MSM) in Hong Kong to mean sex with psychotropic substances, commonly methamphetamine and γ-hydroxybutyric acid (GHB). It’s sometimes also as chemsex or sexualised drug use in other places (in this chapter, the term […]
Introduction According to the World Drug Report 2017, an estimated quarter of a billion people, or around 5 per cent of the global adult population, used drugs at least once in 2015. Some 29.5 million of these drug users, or 0.6 per cent of the global adult population, suffered from drug use disorders. People who […]