In our daily lives, microorganisms They are much more present than we think and can pose both a threat to health and an opportunity for sustainable development. From their impact on swimming pools and beaches to their essential role in the fertility of agricultural soils or the early stages of human development, these microscopic beings are silent protagonists in numerous everyday and scientific situations.
The arrival of summer intensifies our exposure to pathogenic microorganisms, especially during recreational activities and in the food we consume outdoors. Cases of infections associated with spoiled water and food highlight the importance of responsible management of these environments and products, as well as the need for new strategies in the agricultural and biotechnology fields to minimize risks and take advantage of the beneficial aspects of certain microorganisms.
Microorganisms in water: swimming pools, beaches, and health problems
Water, whether in swimming pools, beaches or lakes, is one of the media where Microorganisms can be transmitted more easilyVarious studies and analyses of recent outbreaks show that the presence of bacteria such as Escherichia coli o Cryptosporidium In recreational waters it poses a significant risk, especially for vulnerable groups such as children, pregnant women or immunosuppressed people.
Recent examples reflect the temporary closure of public swimming pools after the presence of contaminated feces and the resulting risk of transmission of chlorine-resistant bacteria and viruses, such as Cryptosporidium itself, which can survive for days even in properly treated water. Contact with contaminated water, whether through accidental ingestion, injury, or even through the eyes, can trigger gastrointestinal problems, infections, and even more serious conditions such as sepsis if exposure is significant.
In natural environments, such as the sea or lakes, the situation becomes more complicated when there is heavy rain or spillage, as bacteria normally present in the human intestine but potentially dangerous when they contaminate the water proliferate. Microbiological control of the waters, measuring parameters such as intestinal enterococci and colony forming units of E. coli, is essential to determine whether the water is suitable for bathing.
Microorganisms in food and food safety
Consumption poorly preserved foods, especially in summer, favors the development of dangerous bacteria. Preparations with undercooked eggs, homemade sauces, cut fruit, or leftovers can be vehicles for microorganisms such as Salmonella, Campylobacter y E. coli, the main cause of food poisoning that affects millions of people around the world every year.
Food safety experts insist on the importance of maintaining Cold chain and consume food in short periods of time to limit bacterial growth. They also recommend using rigid coolers and ice packs to transport food, as well as avoiding risky foods if good hygiene conditions cannot be guaranteed.
A fundamental practice is the hand hygiene before handling food, in addition to choosing safe and easy-to-store recipes. These measures They help prevent outbreaks and especially protect the groups most vulnerable to serious complications.
Alerts and outbreaks of aquatic infections
In some parts of the world, such as the United States, rising water temperatures have favored the expansion of dangerous aquatic microorganisms, including bacteria such as Vibrio vulnificus and the amoeba Naegleria fowleriThese infections, although rare, are often associated with serious conditions and can be fatal, especially in people with pre-existing illnesses.
The exhibition is mainly produced by open wounds Contact with warm salt or fresh water, as well as eating raw seafood. Health recommendations include avoiding hazardous swimming, properly covering wounds, and avoiding raw seafood.
Authorities stress the importance of quickly identifying and treating symptoms, in addition to adapting control and surveillance protocols to the effects of the virus. climate change in aquatic microorganisms, which is modifying the distribution of these microorganisms in the aquatic environment.
Changes in agriculture: microorganisms as soil allies
In the agricultural field, soil microorganisms are becoming established as essential resources for promoting more sustainable agriculture. Initiatives such as the project Mycowine They have shown that mycorrhizal fungi and natural bacteria improve the ability of plants to absorb water and nutrients, increasing productivity and resistance to adverse conditions such as drought and the presence of pathogens.
Viticulture research, led by wineries and biotechnology companies, seeks to identify and multiply beneficial microorganisms for the vineyard, with the goal of reducing the use of synthetic chemical phytosanitary products. The development of quality manuals and seals based on soil biodiversity represents one of the most promising lines of work for certifying sustainable agricultural practices.
Other companies, such as Timac Agro, are investing in new lines of production of microorganisms for fertilizers and biostimulants, promoting solutions that respect ecological balance and encourage the development of new raw materials of natural origin, in line with the circular economy. These strategies seek to reduce environmental impact and protect the health of crops and people.
Biotechnology and pest control with microorganisms
Biotechnology has advanced in the creation of products biodegradable that incorporate microorganisms to control agricultural pests. Projects like Bioencapsulació 2 focus on releasing these microorganisms in a controlled manner into the soil using biodegradable hydrogels or films, thereby reducing the use of traditional chemicals and phytosanitary products.
A priority is to ensure the feasability of these microorganisms after industrial processes and that they do not have negative effects on other organisms in the environment, through rigorous ecotoxicity studies. Collaboration between research centers, agricultural cooperatives and companies in the sector is driving a more efficient and secure management of agricultural resources, incorporating the benefits of microorganisms into production chains.
Microorganisms and human health: defenses from the beginning
The microorganisms They also play a crucial role in the early stages of human development. Recent studies show that human and animal embryos They are able to defend themselves against pathogenic bacteria even before developing a complete immune system.
Thanks to the epithelial cells of the embryonic surface, these organisms can carry out processes of phagocytosis, recognizing and eliminating potentially harmful bacteria. This discovery opens new avenues for research into the causes of infertility and embryonic developmental abnormalities, as well as into possible beneficial interactions with non-pathogenic bacteria present in the uterine environment.
The defensive capacity of embryos indicates that the interactions between microorganisms and humans begin before birth, and that properly managing these relationships can be key to healthy development and successful reproduction.
The microorganismsFar from being mere invisible protagonists, they play a key role in fundamental aspects of our well-being and the environment. Their study and use offer new opportunities to improve food security, ecosystem protection, and innovation in health and agriculture, while always considering their responsible management to maximize their benefits.
