Building the Future of Biodefense

Biothreat intelligence to deter and detect natural, accidental, deliberate and novel biological agents.

ADVISORY
Chikungunya cases on the rise in the Seychelles
01/08/2026
Seychelles

Recommendation: Organizations in the Seychelles should reduce mosquito habitats by eliminating standing water and applying insecticides to outdoor storage containers, as well as encouraging employees to prevent mosquito bites. Organizations should support pregnant employees who opt not to travel to areas reporting elevated chikungunya circulation. Employees should consult a doctor about vaccination against chikungunya before traveling to affected areas. Vaccine eligibility and availability may vary by country.

Situation: Media sources reported a rise in chikungunya cases in the Seychelles during the rainy season. The increase started in mid-December, and the disease is currently more prevalent than other vector-borne diseases circulating, including dengue and the Zika virus. The country's rainy season typically runs from November to March. Several countries in East Africa and the Indian Ocean region recorded elevated chikungunya activity earlier in 2025, including Mauritius, Kenya, and Somalia (see PHC alerts on 5/12 and 6/6). [Confidence: Very High]

WATCH
North Carolina confirms 3 new measles cases linked to the South Carolina outbreak
01/08/2026
North Carolina, Buncombe County

Recommendation: Organizations in Buncombe County, North Carolina, should inform employees about the possible measles exposure and provide flexible work schedules to support employees making vaccine appointments for themselves or family members. Measles is highly contagious and can quickly spread among unvaccinated individuals in a work environment.

Situation: North Carolina confirmed 3 new measles cases in 3 siblings from Buncombe County. The family recently visited Spartanburg County, South Carolina, where a large measles outbreak is ongoing, 1-2 weeks before they became sick. This marks the 2nd reported instance in the past week of the South Carolina outbreak spreading into North Carolina (see PHC alert 1/2). The public may have been exposed at the Mission Hospital Emergency Department waiting room on 1/4. Exposed individuals should monitor for measles symptoms (7-21 days from exposure). [Confidence: Very High]

ADVISORY
Israel reports its 1st mpox clade 1b case in a returning traveler
01/07/2026
Israel

Recommendation: Organizations can support employees in obtaining mpox vaccinations by providing flexible work schedules. Information on the availability of mpox vaccines and treatment can also be included in employee wellness communication.

Situation: According to media sources, Israel reported the country's 1st detection of mpox clade 1b in a traveler returning from the United Arab Emirates. No new additional cases were detected so far. Health officials reported that mpox vaccines are currently unavailable, though efforts are underway to renew supplies and improve access for at-risk groups. [Confidence: Very High]

ADVISORY
Increasing prevalence of the Chagas disease parasite in kissing bugs along the US-Mexico border, according to a study
01/07/2026
Texas, El Paso CountyUnited States of America, New Mexico

Recommendation: Over 8 million people worldwide are infected with the Chagas disease parasite. It is most common in rural areas of Mexico and Central and South America, but can also occur in the US. It usually spreads through bites from triatomine bugs, also known as kissing bugs, but can be spread through other transmission routes. Early infection is often mild or goes unnoticed, but chronic infections can lead to serious heart and digestive system issues. Organizations with employees working outdoors should remind them to wear protective clothing and use insect repellent. Insecticides may be applied around buildings, and employees bitten by triatomine bugs should consult a doctor about Chagas disease screening.

Situation: A recent study published in Epidemiology & Infection assessed the prevalence of Trypanosoma cruzi, the causative agent of Chagas disease, in triatomine bugs from El Paso County, Texas, and southern New Mexico. 88.5% of the 26 triatomine bugs collected from woodland and urban environments tested positive for Trypanosoma cruzi. The finding represents an increase in prevalence calculated by a previous study in the same region in 2021, which estimated a prevalence of 63.3%. Researchers highlighted the growing threat of locally acquired Chagas disease in the southwest, particularly in areas along the US-Mexico border. [Confidence: Very High]

WATCH
Measles cases rise in Quebec outbreak
01/07/2026
Canada, Quebec

Recommendation: Organizations in Quebec, Canada, should inform employees about the measles exposure locations and provide flexible work schedules to support employees in making vaccine appointments for themselves or family members. Measles is highly contagious and can quickly spread among unvaccinated individuals in a work environment.

Situation: After declaring a measles outbreak in December, Quebec health officials reported 3 new measles cases since PHC's last alert on 12/16, totaling 9 as of 1/7. The regions currently affected are Lanaudière, Laurentides, Laval, and Montréal. Health officials announced measles exposure locations at Walmart Supercentre in Saint-Léonard (12/10-13) and at multiple healthcare facilities, which are listed in the source link. Exposed individuals should monitor for measles symptoms (7-21 days from exposure). [Confidence: Very High]

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