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October 2025


European Day for Organ Donation and Transplantation

10 October 2025

World Mental Health Day

10 October 2025

December 2025


January 2026


February 2026


World Aspergillosis Day

1 February 2025

World Cancer Day

4 February 2025

Rare Disease Day

28 February 2025

March 2026


World Sleep Day

14 March 2025

World Tuberculosis Day

24 March 2025

April 2026


World Health Day

7 April 2026

World Sarcoidosis Day

13 April 2026

Earth Day

22 April 2025

May 2026


World PH Day

5 May 2025

World Asthma Day

6 May 2025

International Nurses Day

12 May 2025

European Week Against Cancer

25–31 May

World No Tobacco Day

31 May 2025

June 2026


World Bicycle Day

3 June 2026

World Environment Day

5 June 2026

July 2026


World Bronchiectasis Day

1 July 2026

August 2026


September 2026


Pulmonary Fibrosis Month

1–30 September 2025

International Day of Clean Air for Blue Skies

7 September 2026

World Car Free Day

22 September 2026

World Lung Day

25 September 2026