The World Allergy Week 2019, observed from 07-13 April 2019. It's theme is;

The World Immunisation Week 2019 celebrates 'Vaccine Heroes' worldwide ranging from parents and community members to health workers and innovators who help to ensure that we are protected via the power of vaccines. The theme for 2019 is 'Protected Together: Vaccines Work'. The last week of April (24th-30th) every year is observed as World Immunisation Week in order to promote the use of vaccines for the protection of people of all age-groups against disease. The WHO (World Health Organization) notified that there are still 20 million unvaccinated and under-vaccinated children worldwide; so this initiative brings to limelight the necessity to bring on immunization progress through increased investment. Immunization Week was observed for the very first time in 2012 when more than 180 countries and territories worldwide participated in it.

As part of Gram Swaraj Abhiyan, Ayushman Bharat Diwas is celebrated across the country on April 30. For the first time, the day was observed on 30th April 2018. During the event, information regarding Ayushman Bharat Scheme was provided to people during health camps organised in rural areas. On this day, gram sabhas were organized in different parts of the country to create awareness about the National Health Protection Mission and verify and update details in the Socio-Economic and Caste Census database.

World Meteorological Day is observed annually on March 23 to commemorate the establishment of the World Meteorological Organization (WMO) in 1950. The day also underlines the efforts of National Meteorological and Hydrological Services for the safety and well-being of society. The theme 2019 was "The Sun, the Earth and the Weather". The day was first observed in 1961.

The World Creativity and Innovation Day was observed to encourage people to use creativity in problem-solving for all issues related to achieving the 2015 Sustainable Development Goals. the United Nations (UN) recognized 21st April as an official World Creativity and Innovation Day and 2018 marks the first year the UN was observed WCID. The day was first commemorated in over 50 countries around the world on 21st April 2002. In 2006, this day became a week starting from 15th April, which is Leonardo Davinci's birthday; an icon of cross-disciplinary creativity in the arts and sciences.

Bihar Diwas or Bihar Day is celebrated every year on 22 March to commemorate the state's separation from Bengal presidency in 1912. This day is a public holiday in Bihar. This day marks the 107th foundation day of Bihar.

Rajasthan Day is celebrated on 30th March every year on which the state Rajasthan came into existence as it was previously known as Rajputana. On 30th March 1949, the state was formed.

The World Migratory Bird Day for 2019 is observed on May 11. It is celebrated twice in the year, which falls on the second Saturday in May and October. In 2019, it will be celebrated on May 11 and October 10. The theme for this year is "Protect Birds: Be the Solution to Plastic Pollution!". It is organized by the Secretariats of the Convention on the Conservation of Migratory Species of Wild Animals (CMS) and the African-Eurasian Migratory Waterbird Agreement (AEWA) along with Environment for the Americas (EFTA). It is celebrated to raise the awareness on the need for protecting the migratory birds and their habitats.

World Thalassaemia Day 2019 was celebrated on May 8 worldwide with a theme of "Universal Access to Quality Thalassaemia Healthcare Services: Building Bridges with and for Patients". The purpose of this day is to honour all patients of thalassaemia and their wards who never gave up despite all odds and also to support researchers who are striving to create an improved quality of life for people with thalassaemia across the world. To celebrate this day, Thalassaemia International Federation (TIF) organised 3 online competitions worldwide with a certain theme. This online competition will include a video challenge, a photo contest, and a story competition.

The World Sparrow Day (WSD) is observed every year on 20th of March to protect these little birds and conserve their houses. The house sparrow is on the verge of extinction. The 2019 theme "I Love Sparrows" is inspired by hope that more and more will celebrate the relationship between People and Sparrows. The initiative was started by Nature Forever Society (NFS) of India, founded by Mohammed Dilawar, an Indian conservationist. He started his work helping the house sparrow in Nashik. He was also named one of the "Heroes of the Environment" for 2008 by Time for his efforts. The idea of marking WSD came up during an informal discussion at the NFS's office. The idea was to earmark a day for the house sparrow to convey the message of conservation of the house sparrow and other common birds and also mark a day of celebration to appreciate the beauty of the common biodiversity which is taken so much for granted.

The World Health Day is a global health awareness day celebrated every year on 7 April, under the sponsorship of the World Health Organization (WHO). And the theme for 2019 is Universal Health Coverage: Everyone, Everywhere.