#Travelhealth

A rare case of bubonic plague diagnosed in a South Lake Tahoe resident this week has renewed questions about a disease most people think died out with the Black Death. Health officials say the infection likely came from an infected flea bite while the person was camping, and experts stress that modern medicine can treat plague effectively when caught early. For Thai readers, the episode is a reminder that ancient pathogens still circulate in wildlife, that outdoor recreation carries specific risks, and that public health preparedness requires continuous vigilance even for diseases perceived as historical curiosities.

The US Centers for Disease Control and Prevention (CDC) has expanded its Global Polio Alert, issuing Level 2 “Practice Enhanced Precautions” travel notices for five widely visited European countries after environmental surveillance found poliovirus in wastewater. The move does not close borders but urges travellers and health systems to check and update polio vaccination before travel, and highlights how wastewater surveillance is revealing silent spread of vaccine-derived polioviruses in places previously thought low-risk (CDC Travel Health Notices).

China has reported a rapidly growing outbreak of chikungunya in southern Guangdong province that authorities say has now passed the 10,000-case mark, prompting aggressive mosquito-control measures and renewed international attention to a virus that causes fever and crippling joint pain. The spike, centred on the manufacturing hub of Foshan and already linked to cases in Hong Kong and Taiwan, has exposed vulnerabilities in urban areas where Aedes mosquitoes thrive and where population movement can seed new clusters of infection (Express: Pandemic fears erupt as China’s agonising virus hits horrifying milestone). This developing situation matters to Thailand because of frequent travel links, shared mosquito species, recent local history with chikungunya and the seasonal conditions that favour Aedes breeding across Southeast Asia (BBC: What to know about chikungunya virus as cases rise in China).

A catastrophic medical emergency that left an American tourist facing nearly $21,000 in rabies treatment costs after an accidental bat encounter illuminates critical vulnerabilities in Thailand’s own approach to wildlife-related health risks, particularly as the kingdom’s booming eco-tourism industry brings millions of visitors into increasingly close contact with potential rabies vectors. The incident occurred during what should have been a routine stargazing experience in Arizona, when a bat became entangled between the woman and her camera equipment, ultimately flying partially into her mouth and triggering an urgent medical response that revealed how quickly wildlife encounters can transform from memorable moments into life-threatening emergencies requiring immediate, expensive intervention.

A recent case involving an American woman who racked up nearly $21,000 in medical bills after an accidental encounter with a bat while vacationing in Arizona sheds new light on critical gaps in rabies post-exposure care and insurance coverage—issues that hold significance far beyond the United States, including for Thai tourists and local residents alike. The incident, covered by NewsNation, occurred last August when the tourist was photographing the Arizona night sky and a bat became ensnared between her and her camera—eventually flying partially into her mouth. Bats are recognized as primary rabies vectors, sparking an urgent need for immediate medical intervention whenever a bat-human interaction occurs, even if no obvious bite mark is present (NewsNation).

Recent travel research and social media trends converge in highlighting a common, yet often overlooked, mistake made by American tourists in Europe: overpacking and bringing oversized suitcases. The issue, brought into focus by a widely shared Travel + Leisure article, underscores not only logistical challenges but also cultural differences that set travelers from the United States apart in the eyes of Europeans.

For tourists from Thailand, who are themselves part of a vibrant and ever-growing international travel community, understanding the pitfalls of overpacking is crucial, especially as more Thai travelers embark on multi-country tours through Europe. These lessons resonate in our interconnected world, where social media shapes travel norms and etiquette.

A renewed surge in measles cases worldwide has prompted the US Centers for Disease Control and Prevention (CDC) to issue a heightened health advisory, urging travelers to ensure measles vaccination before international travel. The advisory, published at the end of May, underscores an “ongoing risk” that leaves individuals vulnerable to infection in airports, train stations, on public transport such as airplanes and trains, and at crowded tourist attractions, highlighting a wake-up call for travelers everywhere, including those from Thailand.

The US state of Virginia has reported its first confirmed measles case for 2025, raising fresh concerns about the resurgence of vaccine-preventable diseases. Health officials at the Virginia Department of Health announced the case on 19 April 2025, emphasizing the critical need to maintain high immunization rates. This news is not only significant for Americans, but offers urgent lessons for Thai families and healthcare providers in an era marked by global travel, vaccine hesitancy, and infectious disease risks.

Colombia has declared a nationwide health emergency following a sudden and deadly outbreak of yellow fever, with at least 34 deaths and 74 confirmed cases reported so far in 2025, according to official Colombian health authorities (BBC; Reuters). The government’s urgent response underscores growing alarm about the re-emergence of this mosquito-borne virus in a region that had seen virtually no cases in recent years—a trend that should serve as a wake-up call for countries like Thailand, also home to mosquito-borne diseases.