ABSTRACT
China’s HIV/AIDS epidemic has entered its third phase, moving from ‘‘entry,’’
‘‘spreading,’’ and is now in its ‘‘expansion’’ stage, according to some (Wu, Rou
and Cui, 2004). Previous chapters detailed the role of intravenous drug use (IDU),
commercial sex work (CSW), men who have sex with men, and demographic fac-
tors, particularly the gender imbalance among younger age cohorts in the spread of
HIV. However, the ever growing migrant population is singled out as a key driver
of HIV/AIDS in China during this expansion stage. In Chapter 4, we argued that
the increasing feminization of migration is also linked to the growth of China’s
commercial sex industry and has, consequently, become an important bridge for
the spread of HIV/AIDS to the general population. This chapter considers more
broadly the process of migration with a particular emphasis on national-level pat-
terns of migration. China’s economic reforms have had a large impact on the
movement of people in search of better opportunities. Such large-scale movements
of people have historically played an important part in disease transmission:
The link between commercial activity and transmission of infectious disease
has a long history. Because epidemics depend on the introduction of a patho-
gen into a susceptible population, it is not surprising that global events asso-
ciated with mass movements of people and goods have seen the concomitant
emergence of new threats of infectious disease. Major historical challenges
to public health and subsequent advances in the control of communicable
disease frequently emerged in important trading centres – eg, 14th century
Venice, Italy; 19th century London, UK; and 20th century New York, USA.