About World Microbiome Day

On World Microbiome Day we celebrate all things microbial, all around the world. We introduce international microbiome researchers to the public to raise awareness of the vibrant and diverse world of microbes and invite the public and industry professionals to share their thoughts and activities with the microbiome community.
Microorganisms (e.g. bacteria, fungi, viruses, archaea, etc.) can be found everywhere in and on plants, animals, water, soil, food and humans. Within each of those habitats, microorganisms live together in communities called microbiomes. Microbiomes influence the health of humans and the entire planet therefore, scientists are exploring how these communities of organisms coexist with us and with our environment.
The theme for World Microbiome Day 2021 is Sustainability with a focus on how microbes can contribute to a sustainable future. Despite their ubiquity and diversity, the importance of microbes for maintaining healthy global ecosystems is often overlooked. Microbes already have a tremendous effect on the health and balance of the environments we live in. For example,
  • Marine microbes produce most of the oxygen we breathe and can absorb as much carbon dioxide as plants do on land.
  • Microbes in the soil fix nitrogen – changing it from a gas in the atmosphere to a form in the soil that plants can use to grow.
  • Some microbes even have the capacity to break down methane gas, helping to slow climate change.
  • In our homes, composting microbes help us recycle our green waste (plants, vegetables, fruits) and recover nutrients to enrich the soil in our gardens.
  • Up to a third of the food we consume is produced by microbes. We can use microbes to extend the shelf-life of our foods and prevent food waste by fermenting foods at home.
  • At a larger scale, microbes can contribute to the circular economy by converting waste (e.g. food production waste) into fuel and thus provide new and sustainable opportunities for the food and feed production.
Together microbiomes are actively contributing to clean environments, sustaining food systems, mitigating climate change and keeping people healthy. In this way, microbes help us reach the United Nations’ Sustainable Development Goals (SDGs).
World Microbiome Day 2021 raises awareness of the importance and potential of microbiomes for a sustainable future. Get involved by sharing your thoughts and ideas on sustainability and the microbiome, participating in World Microbiome Day activities and events and by sharing in our enthusiasm for all things microbes!

Supported by

Sponsorship Opportunities

Support us to celebrate and raise public awareness of the vibrant and diverse world microbes on World Microbiome day!
Since its inception in 2018, World Microbiome Day events have taken place on all continents and reached global audiences online through website and social media channels.
Sponsoring World Microbiome Day gives you the opportunity to target a global audience (from the general public to researchers) and to improve your recognition worldwide.
Sponsorship helps amplify our message to raise awareness of the importance of microbial diversity and through our actions to sustain and increase the diversity of microbes in humans, animals, soils and water throughout our world for the future of our planet.
If you are interested in sponsorship opportunities please contact Ms Tina Darb; email: info@worldmicrobiomeday.com 


Most frequent questions and answers
World Microbiome Day was launched by APC Microbiome Ireland just last year! In 2019, APC Microbiome Ireland is supported by the EU-funded project MicrobiomeSupport and the European Food Information Council (EUFIC).
Microbes are very small organisms such as bacteria, fungi and viruses. A community of microbes is called a microbiome and these can be found in and on humans, animals, and everywhere in the environment.
The 2019 theme is ‘Antibiotic Resistance’. Antibiotics are one of the most precious medicines on the planet. Every year millions of lives are saved worldwide. The paradox is that the medicine is not just the cure, but also at the same time the obstacle to fight the disease in the long-term due to evolution of antibiotic resistance in bacteria that are infectious to humans. More cautious use of antibiotics can help stop resistant bacteria from developing and help keep antibiotics effective for the use of future generations.

How much time do you have to spare?    

5 minutes? Retweet @WMicrobiomeDay tweets or like our @WorldMicrobiomeDay Instagram posts

10 minutes? Test and expand your knowledge by taking the microbiome quizzes.

An afternoon? Sign up for the competition.

More? Organise an event or participate in one close to you

No, any microbiome enthusiast can participate!
Download and print the new 2019 logo: here. Check out the social media kit: here.

Check out the event page and hook on to an event close to you.

Or, even better, create your own microbiome event – get together in the classroom, lab or research group and think about how you and your team can put microbes into the spotlight.

Submit your event dedicated to the microbiome here.

You can tweet and tag @WMicrobiomeDay in your post, using the hashtag #microbiome and retweet a @WorldMicrobiomeDay post onto your own feed. Use the hashtags: #WorldMicrobiomeDay and #MindOurMicrobes.

No need to worry. Did you organise a microbiome event earlier in the year? Share or reshare the pictures of the event on social media, tagging @WMicrobiomeDay on Twitter or @WorldMicrobiomeDay on Instagram.