Most recent

• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 21 (30 May 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-05-30)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean continue to see a decline in influenza A(H1N1)pdm09 and influenza B activity. RSV activity remains at interseasonal levels in North ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 20 (23 May 2025) 

  Organización Panamericana de la Salud; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-05-23)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean continue to see a decline in influenza A(H1N1)pmd09 and influenza B activity. RSV activity is at interseasonal levels in North ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 19 (16 May 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-05-16)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean continue to see a decline in influenza activity, mainly associated with influenza A(H1N1)pdm09 and influenza B. RSV activity remains ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 16 (25 April 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-04-25)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean continue to see a decline in influenza activity, mainly associated with influenza A(H1N1)pdm09 and influenza B. RSV activity is ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 15 (18 April 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-04-18)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean continue to see a decline in influenza activity, mainly associated with influenza A(H1N1)pdm09 and influenza B. RSV activity remains ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 13 (4 April 2025) 

  Pan American Health Organization (PAHOUnited StatesWashington, D.C., 2025-04-04)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean are continuing the decline in influenza activity, mainly associated with influenza A(H1N1)pdm09 and influenza B, while RSV activity ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 10 (14 March 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-03-14)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean maintain high levels of influenza activity mainly associated with influenza A(H1N1)pmdo9 and Influenza A(H3N2), while RSV activity ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 9 (7 March 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-03-07)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean maintain an increase in influenza activity mainly associated with influenza A(H1N1)pmdo9, Influenza A(H3N2) and Influenza B/Victoria, ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 8 (1 March 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-03-01)

  [WEEKLY SUMMARY]. Regional Situation: Over the past four Epidemiological Weeks (EWs), there has been a decline in lnfluenza-Like lllness (ILI) activity in the Americas region, stabi izing at medium eve s. Simi arly, a ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 7 (28 February 2025)  

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-02-28)

  [WEEKLY SUMMARY]. Regional Situation: In general, North America and parts of the Caribbean are experiencing an increase in influenza activity, primarily associated with Influenza A(H1N1)pdm09, Influenza A(H3N2), and ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 6 (14 February 2025)  

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-02-14)

  [WEEKLY SUMMARY]. Regional Situation: Overall, North America and parts of the Caribbean are experiencing increased Influenza activity, while RSV activity is declining. In Central America, influenza like Illness (ILI) ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 5 (7 February 2025) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-02-07)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like illness (ILI) and severe acute respiratory infection (SARI) activity has increased significantly in North America, driven by the circulation of RSV and influenza. In ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 4 (31 January 2025)  

  Pan American Health Organization (PAHOUnited StatesWashington, D.C., 2025-01-31)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like Illness (ILI) and Severe Acute Respiratory Infection (SARI) activity has shown a marked increase in North America, driven by the circulation of RSV and influenza. In ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 3 (24 January 2025)  

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-01-24)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like illness (ILI) and severe acute respiratory infection (SARI) activity has risen sharply in North America, driven by the circulation of RSV and influenza. In contrast, a ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 2 (17 January 2025)  

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-01-17)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like illness (ILI) and severe acute respiratory infection (SARI) activity has shown a marked increase in North America, associated with the circulation of RSV and influenza. ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 1 (10 January 2025)  

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-01-10)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like illness (ILI) and severe acute respiratory infection (SARI) activity has shown a significant increase in North America, driven by the circulation of RSV and influenza. ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 52 (3 January 2025)  

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2025-01-03)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like illness (ILI) and severe acute respiratory infection (SARI) activity has shown a marked increase in North America, associated with the circulation of RSV and influenza. ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 51 (27 December 2024) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2024-12-27)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-like illness (ILI) activity has increased in the subregions of North America and the Caribbean, driven by the circulation of respiratory syncytial virus (RSV) and influenza. ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 50 (20 December 2024) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2024-12-20)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-Like Illness (ILI) activity has increased in the North American and Caribbean subregions, driven by the circulation of RSV and influenza. In contrast, ILI activity remains ...
• 

  Regional Update, Influenza and Other Respiratory Viruses. Epidemiological Week 49 (13 December 2024) 

  Pan American Health Organization; Health Emergencies (PHE) (PAHOUnited StatesWashington, D.C., 2024-12-13)

  [WEEKLY SUMMARY]. Regional Situation: Influenza-Like Illness (ILI) and Severe Acute Respiratory Infection (SARI) activity has shown a general decline in most subregions in recent weeks, except in North America, where an ...

View more