The Dangers of Diseases Caused by Flies

Worksafe Indonesia – Keep Safe, Be Safe !!

Flies may seem like small, harmless insects, but in reality, they are dangerous disease vectors for humans.
Their presence in workplaces, homes, or food areas can easily spread harmful microorganisms through contact with waste, feces, or contaminated surfaces.

⚠️ Why Are Flies Dangerous?

Flies live and breed in garbage, animal waste, sewage, and decaying matter.
When they land on these dirty surfaces, they collect bacteria, viruses, and parasites on their legs and bodies.
Later, when they land on food or utensils, these pathogens are transferred directly to humans.

Moreover, flies regurgitate and defecate every time they eat, making contamination even more severe.

🦠 Common Diseases Spread by Flies

1. Dysentery

• Cause: Shigella sp. or Entamoeba histolytica bacteria.

• Transmission: Through food or water contaminated by fly droppings.

• Symptoms: Bloody diarrhea, stomach cramps, fever, dehydration.

2. Typhoid Fever

• Cause: Salmonella typhi bacteria.

• Transmission: Flies that land on feces and then on food can spread this bacteria.

• Symptoms: High fever, fatigue, digestive issues, and headache.

3. Cholera

• Cause: Vibrio cholerae bacteria.

• Transmission: Contaminated food or water exposed to flies from human waste.

• Symptoms: Severe diarrhea, vomiting, and dehydration.

4. Eye Infection (Trachoma)

• Cause: Chlamydia trachomatis bacteria.

• Transmission: The Musca sorbens fly often spreads this infection by landing near human eyes.

• Symptoms: Itching, swelling, and possible blindness if untreated.

5. Food Poisoning

• Cause: Bacteria such as E. coli or Staphylococcus aureus carried by flies.

• Transmission: Through uncovered or improperly stored food.

• Symptoms: Nausea, vomiting, diarrhea, stomach pain.

🧹 Prevention at Home and Workplace

✅ Maintain cleanliness — dispose of waste daily and keep surroundings clean.
✅ Keep food and drinks covered to prevent fly contact.
✅ Use covered trash bins and clean kitchens or canteens regularly.
✅ Install fly traps or window screens to block entry.
✅ Wear PPE (Personal Protective Equipment) when working in waste or sanitation areas.

🔎 Conclusion

Flies are not just a nuisance — they are carriers of dangerous diseases that threaten human health.
Maintaining cleanliness, managing waste properly, and ensuring good hygiene are key steps in preventing fly-borne diseases at work and at home.

Worksafe Indonesia – Keep Safe, Be Safe !!