What are emerging infectious diseases? Outbreaks of new diseases whose causative agents are not known. Known infectious diseases which are rapidly growing in geographic scope or incidence in recent years. Persistence of certain infectious diseases, which, in their very nature, can not be cured. Health care providers and researchers are currently engaged in studying, testing and trying to contain infectious disease agents that may cause disease outbreaks. What are emerging infectious diseases, then? The expression "emerging" is used to describe a condition that is not well understood, but which is spreading rapidly. These outbreaks are often associated with an increased rate of mortality, more widespread fatalities and a lack of serious public health threat. There are a number of infectious agents that may create such outbreaks. Among them are: Traveling abroad may be an opportunity to develop a higher level of resistance to common illness. However, people traveling internationally also need to be more careful about exposure to these agents. As people traveling internationally have fewer resources for safety, they need to be even more alert. What are emerging infectious diseases? The people who take part in outdoor activities like travel abroad and living in areas of high population prevalence of these agents are more at risk of contracting infections. What are emerging infectious diseases in adults? Adults who have recently traveled abroad and are living in countries where these agents have become widespread should be extra careful. They should be aware of how to recognize and respond to signs and symptoms of infections. Those individuals may need to seek medical attention as their immune systems are impaired. What are emerging infectious diseases in children? Those children who live in countries with high populations of humans carrying the herpes virus are particularly vulnerable to becoming infected with the virus. A recent study showed that a large proportion of child marriages in India take place between adults who have acquired the infection in the country and those who have come from abroad. If this trend continues, it could mean a major rise in the number of children infected with the virus.