As winter continues, attention is turning to the prevalence of respiratory and gastrointestinal illnesses circulating in Italy. Recent data indicates a slight decrease in acute respiratory infections, but vigilance remains crucial, particularly as schools reopen and daily routines resume following the holiday season. Understanding the current trends and circulating viruses is key to protecting public health.
The latest surveillance report from the Istituto Superiore di Sanità (ISS) – known as RespiVirNet – provides a snapshot of the situation. While cases are trending downwards, experts caution against declaring the peak of the season over just yet. The potential impact of increased social interaction following the Christmas holidays requires continued monitoring.
During the week of January 2nd to 8th, 2026, the incidence of acute respiratory infections in the community was 9.7 cases per 1,000 individuals, a slight decrease from the 10.1 cases reported the previous week. Approximately 524,000 fresh cases were estimated, bringing the total since the start of the surveillance to 10.9 million, according to the ISS report.
This decline in incidence is observed across all age groups, including the particularly vulnerable 0-4 year classic demographic, which saw a decrease from 40 to 38 cases per 1,000 individuals. Regional variations exist, with Liguria and Sardinia already reaching baseline levels of infection, while Puglia, Basilicata, Campania, Marche, and Valle d’Aosta are currently experiencing moderate intensity.
Dominant Viruses and Hospitalizations
Currently, RSV (respiratory syncytial virus), rhinovirus, and other coronaviruses – excluding SARS-CoV-2 – are the most prevalent respiratory viruses identified in both community and hospital settings. This trend is consistent with data collected through the RespiVirNet surveillance system.
For severe cases requiring hospitalization, the A(H1N1)pdm09 influenza subtype is dominant. Importantly, a significant proportion of these severe cases are occurring in individuals who have not been vaccinated against influenza. This underscores the importance of vaccination, particularly for vulnerable populations.
Influenza Strain Analysis
Further analysis of circulating influenza viruses reveals that the K subclade is overwhelmingly prevalent among the A(H3N2) strains currently circulating in Italy. Among H1N1 pdm09 strains, all analyzed samples fall within the D.3.1 subclade, which is as well represented in current influenza vaccines, according to a recent report from Rainews. No avian flu strains have been detected in analyzed samples.
Ongoing Surveillance and Future Outlook
The ISS continues to closely monitor the situation through the RespiVirNet surveillance program, which provides crucial data for public health decision-making. The program’s data is updated regularly and is available to the public through EpiCentro.
While the current trend suggests a potential easing of the peak of respiratory infections, continued vigilance and adherence to preventative measures – including vaccination, hand hygiene, and respiratory etiquette – remain essential. The coming weeks will be critical in determining whether the decline in cases will continue and whether the reopening of schools and other activities will lead to a resurgence of circulating viruses.
This is a developing situation, and we will continue to provide updates as more information becomes available. Share your thoughts and experiences in the comments below.
Disclaimer: This article provides informational content only and is not intended to be a substitute for professional medical advice. Always consult with a qualified healthcare provider for diagnosis and treatment of any medical condition.