Keep your gut healthy in summer
Summer is a time for relaxation, travel, and barbecues. However, high temperatures encourage the proliferation of bacteria and viruses in food, increasing the risk of food poisoning and gastrointestinal infections. What are the most common threats and how can you protect yourself from them? This article will answer these questions.
Why do we get sick in the summer?
Food poisoning most often affects us in the summer, which is due to several factors:
- High temperature promotes the rapid multiplication of bacteria (e.g. Salmonella, Listeria, E. coli) in food products.
- Eating outdoors (picnics, barbecues), where it is more difficult to maintain hygienic conditions.
- Holiday travel – often to countries with lower sanitary standards or with a different bacterial flora.
- Inappropriate food storage – perishable products often remain outside the refrigerator for extended periods of time.
Salmonella – a dangerous bacterium on the summer menu
Salmonella is a bacterium often found in raw meat, eggs, milk, and dairy products. Infection usually occurs after consuming contaminated food or water, with symptoms appearing 6 to 48 hours after exposure. The most common symptoms include:
- nausea and vomiting,
- diarrhea, sometimes with blood,
- abdominal pain,
- fever,
- general weakness.
Salmonella is diagnosed using laboratory tests, such as stool cultures or molecular analysis of enteric pathogens in stool. In most cases, treatment for salmonella involves adequate hydration and a light diet. Antibiotics are only used in severe cases or in at-risk individuals, such as children, the elderly, or those with compromised immune systems.
Rotaviruses – a problem not only for children
Rotaviruses are the leading cause of acute diarrhea in children, but they can also infect adults. Transmission occurs through the fecal-oral route, through contact with an infected person, objects, or by eating contaminated food. Symptoms of rotaviruses include:
- watery diarrhea,
- vomiting,
- fever,
- abdominal pain.
Treatment is symptomatic and primarily involves hydration. Vaccination is an effective method of preventing rotavirus infection.
"Jelitówka" - viral gastroenteritis
Colloquially called "enteritis," this infection is most often a viral gastroenteritis caused by rotaviruses or noroviruses. It is characterized by the sudden onset of symptoms, such as:
- nausea and vomiting,
- diarrhea,
- abdominal pain,
- fever.
The condition usually resolves on its own within a few days. Adequate hydration and rest are crucial. If symptoms become severe or dehydration occurs, consult a doctor.
How to protect yourself against summer intestinal infections?
- Taking care of hygiene: washing your hands regularly, especially before meals and after using the toilet.
- Storing food safely: avoiding eating raw or undercooked foods, storing food at appropriate temperatures.
- Hydrate your body: On hot days and during infections, it is important to drink fluids regularly.
- Vaccinating against rotaviruses, especially in children.
- Avoiding contact with sick people: Whenever possible, avoid close contact with people with symptoms of a gastrointestinal infection.
It is important to remember that if symptoms persist, such as high fever, bloody diarrhea, or signs of dehydration—dry mouth, dizziness, infrequent urination—a consultation with a general practitioner in Lublin. The doctor will assess the patient's condition, the risk of dehydration, and, if necessary, recommend appropriate tests or treatment.
Medical consultation
Doctor Wiktoria Duszyńska,
Internist,
CM Luxmed, Lublin, ul. Zwycięska 6A
Sources:
https://instytut-mikroekologii.pl/salmonella-diagnostyka-leczenie-i-profilaktyka
https://www.nowafarmacja.pl/blog/rotawirus-u-doroslych-objawy-i-leczenie
Frequently asked questions – FAQ
Why do we suffer from intestinal infections more often in summer?
High summer temperatures promote the rapid growth of microorganisms in food. Travel, eating out, picnics, barbecues, and improper storage of perishable products also increase the risk.
What increases the risk of food poisoning in summer?
The risk is increased by storing food outside the refrigerator, not washing hands thoroughly, eating raw or undercooked foods, drinking water from an unreliable source and eating food prepared in unhygienic conditions.
What microorganisms can cause intestinal infections?
Intestinal infections can be caused by bacteria such as Salmonella, Listeria, and E. coli, as well as viruses such as rotavirus and norovirus. Sources of infection include contaminated food, water, or contact with an infected person.
What are the symptoms of an intestinal infection?
Symptoms of an intestinal infection can include diarrhea, nausea, vomiting, abdominal pain, fever, weakness, and loss of appetite. In some cases, diarrhea may also contain blood.
What is a "colon"?
"Gutsickness" is a colloquial term for viral gastroenteritis. It usually begins suddenly and can cause watery diarrhea, vomiting, abdominal pain, fever, and general weakness.
How is an intestinal infection treated?
Treatment most often involves hydration, rest, and a light diet. Antibiotics are not always necessary; their use should be decided by a doctor.
How to protect yourself against summer intestinal infections?
It is important to wash your hands regularly, wash vegetables and fruit thoroughly, store food at the right temperature, avoid raw or undercooked foods, and drink water from a safe source.
When should you consult a doctor if you have an intestinal infection?
You should see a doctor if your symptoms are severe or last longer, you have a high fever, blood in your stools, severe abdominal pain, or signs of dehydration such as dry mouth, dizziness, and infrequent urination.

