Infectious diseases remain the major causes of morbidity and mortality in China despite substantial progress in their control. China is a major contributor to the worldwide infectious disease burden because of its population size. The association of China with the rest of the world through travel and trade means that events in the country can affect distant populations. The ecological interaction of people with animals in China favours the emergence of new microbial threats. The public-health system has to be prepared to deal with the challenges of newly emerging infectious diseases and at the same time try to control existing diseases. To address the microbial threats, such as severe acute respiratory syndrome, the government has committed substantial resources to the implementation of new strategies, including the development of a real-time monitoring system as part of the infectious-disease surveillance. This strategy can serve as a model for worldwide surveillance and response to threats from infectious diseases.
Background-International travel continues to increase, particularly to Asia and Africa. Clinicians are increasingly likely to be consulted for advice before travel or by ill returned travelers.
Mass gatherings at major international sporting events put millions of international travelers and local host-country residents at risk of acquiring infectious diseases, including locally endemic infectious diseases. The mosquito-borne Zika virus (ZIKV) has recently aroused global attention due to its rapid spread since its first detection in May 2015 in Brazil to 22 other countries and other territories in the Americas. The ZIKV outbreak in Brazil, has also been associated with a significant rise in the number of babies born with microcephaly and neurological disorders, and has been declared a 'Global Emergency by the World Health Organization. This explosive spread of ZIKV in Brazil poses challenges for public health preparedness and surveillance for the Olympics and Paralympics which are due to be held in Rio De Janeiro in August, 2016. We review the epidemiology and clinical features of the current ZIKV outbreak in Brazil, highlight knowledge gaps, and review the public health implications of the current ZIKV outbreak in the Americas. We highlight the urgent need for a coordinated collaborative response for prevention and spread of infectious diseases with epidemic potential at mass gatherings events.
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