With winter approaching, cases of respiratory infections have increased significantly in several countries worldwide. This surge has raised questions about the potential resurgence of COVID-19, particularly given the similarities in symptoms between COVID-19, seasonal influenza, and other respiratory viruses that are active during this time of year. According to the World Health Organization (WHO), recent reports indicate a gradual increase in influenza activity in various regions of the Northern Hemisphere.
The WHO's latest report, dated November 11, 2026, notes that the percentage of positive samples globally remains below 10% for influenza, with influenza A viruses dominating. In contrast, the activity of SARS-CoV-2, the virus causing COVID-19, remains low globally, although there have been localized increases in some parts of Europe and West Asia. Regional disparities are evident in health data; for example, the Saudi Ministry of Health reported a 30% increase in intensive care unit admissions due to respiratory infections in early October.
Medical professionals and experts highlight the difficulty in clinically distinguishing between types of infections due to the overlap in symptoms of three main viruses: influenza, COVID-19, and respiratory syncytial virus (RSV). Influenza typically begins with sudden onset of fever, muscle pain, and headache, while COVID-19 causes similar symptoms that may progress to shortness of breath. RSV leads to cold-like symptoms but can cause bronchiolitis or pneumonia in infants and older adults.
The US Centers for Disease Control and Prevention (CDC) emphasizes that it is not possible to determine the virus based solely on symptoms, making molecular tests necessary for appropriate treatment decisions, especially for vulnerable populations. This viral activity is linked to lower temperatures and gatherings in enclosed, poorly ventilated spaces, increasing transmission.
Despite the seasonal increase, experts agree that current epidemiological indicators do not suggest the emergence of a new global pandemic comparable to the early years of COVID-19. In August 2026, the WHO classified the global risk associated with COVID-19 as "medium," stressing that the end of the health emergency in May 2023 did not mean the virus had disappeared.
Medical guidelines stress the importance of seeking immediate medical attention for concerning symptoms such as severe difficulty breathing, persistent chest pain, mental confusion, or dehydration. Additionally, health authorities recommend adhering to prescribed antiviral treatments within the first days of symptom onset. To limit the spread of infection, health bodies advise receiving recommended seasonal vaccines, improving ventilation in enclosed spaces, and consistent handwashing.
Furthermore, health experts recommend that infected individuals stay home until at least 24 hours after fever has resolved without medication and wear masks when interacting with others during the following days. By following these precautions, individuals can help mitigate the spread of respiratory infections as winter progresses.
Key points
- The WHO reports a gradual increase in influenza activity globally, with influenza A viruses dominating.
- Experts stress that current indicators do not suggest a new global pandemic comparable to COVID-19's early years.
- Health authorities recommend receiving seasonal vaccines and practicing preventive measures to limit infection spread.
