Zika virus has recently been introduced to the Americas and is spreading rapidly. We evaluated the characteristics of US travelers to Zika virus-affected countries who were seen at Global TravEpiNet sites during March 2015-October 2016. Nearly three quarters of travelers were men or women of reproductive age.

CONTEXT Familial glucocorticoid deficiency (FGD) is an autosomal recessive disorder characterized by distinct clinical, biochemical, and genetic abnormalities. The prevalence of FGD is unknown, with the likelihood that cases remain undiagnosed. We noted a significant proportion of our FGD cases are Irish Travelers. Irish Travelers are an endogamous nomadic group ethnically and genetically disti...

BACKGROUND Enteroviruses are shed in human stool and can cause a wide spectrum of illness. They are the leading cause of aseptic meningitis. METHODS In 2004, the Connecticut Department of Public Health investigated a meningitis cluster among persons returning from a school-organized trip to Mexico. RESULTS Among 29 travelers (25 teenagers and 4 adult chaperones), 21 became acutely ill. Vira...

BACKGROUND Influenza outbreaks have been reported among travelers, but attack rates and incidence are unknown. METHODS A cohort study was conducted. Travelers to subtropical and tropical countries recruited at the University of Zurich Travel Clinic (Switzerland), January 1998 to March 2000, were investigated with pre- and posttravel assessment of hemagglutination inhibition and by questionnai...

BACKGROUND Yunnan is not only considered the region with the most concerning human immunodeficiency virus (HIV)-1 prevalence, but is also the central hub for the spread of HIV-1 from Southeast Asia to the other provinces of China. Yunnan has the highest proportion of entry travelers who have transmitted HIV from neighbored Southeast Asian countries to mainland of China. METHODS Between 2003 a...

We consider a two stage model to study the impact of different selling mechanisms of an opaque reseller on competing travel service providers, who face both leisure and business customers. While leisure travelers learn of their need to travel in the first stage, business travelers learn of this need in the second stage. Business travelers have a higher willingness to pay than leisure travelers,...

BACKGROUND Sexually transmitted infections (STIs) are among the frequent risks encountered by travelers. Efficient interventions are needed to improve the understanding of the risks of STIs. We investigated the potential benefits of a motivational brief intervention (BI) and the provision of condoms on the engagement in unprotected casual sex. METHODS 3-arm randomized controlled trial perform...

BACKGROUND A significant part of the world population lives in areas with endemic Japanese encephalitis (JE). For travelers from nonendemic countries, Vero cell-derived vaccine (JE-VC; Ixiaro) has replaced traditional mouse brain-derived vaccines (JE-MB) associated with safety concerns. The 2 vaccines are derived from different viral strains: JE-VC from the SA14-14-2 strain and JE-MB from the N...

BACKGROUND In travel health risk assessments visiting friends and relatives (VFR) travel status is often used as an indicator for high-risk travel behavior. VFR travelers have been associated with increased risk of travel-associated illnesses due to poor adherence to travel guidelines and lack of pre-travel health consultations. For travelers to dengue endemic regions, guidelines include compli...