Eurosurveillance: Most Recent Articles

Understanding population immunity to emerging viruses is critical for risk assessment. We characterised antibody responses to avian influenza A(H9N2) viruses in 298 human sera from adults in New York City. We observed widespread cross-reactive H9-binding antibodies, albeit at lower levels (GMT = 371.3) than against seasonal H3 (GMT = 1,398.0), with low to undetectable haemagg...

A penicillin-resistant group B streptococcal (GBS) strain was identified in Italy, after isolation from the blood culture of a patient in their 80s with comorbidities. The isolate was multidrug-resistant and demonstrated by genome sequencing to be of serotype Ia, sequence type 23, and to possess the alp1 gene. Known and new point mutations were detected in the penicillin-bind...

In January 2026, French Guiana detected its first confirmed chikungunya case, initiating a second outbreak after the first one which occurred in 2014/15. The expected seroprevalence for 2026 is estimated at 16.2%, with the virus likely spreading eastward from the west of French Guiana. The causative East/Central/South African (ECSA) strain, lacking the vector-adaptive E1-A226...

Enterovirus D68 (EV-D68) is a re-emerging pathogen that can cause acute respiratory illness in children and difficult to predict outbreaks.

To anticipate outbreaks in children, we investigated if wastewater surveillance could timely detect circulation of EV-D68 and its respective subclades in Niigata City, Japan.

During January−Dece...

Tick-borne encephalitis virus (TBEV) was detected in the Netherlands in 2015. Current monitoring through serology in deer, tick collection and reported human cases, may underestimate areas of virus circulation. Including estimates of suitability of the habitat for TBEV can guide risk-based monitoring.

We aimed to improve the accuracy of the TBEV distr...