Cockroaches are known to carry and spread a range of bacteria and disease-producing organisms to humans. Some of the diseases that cockroaches can carry include:

• Salmonella: Cockroaches can carry the Salmonella sp. bacteria which can cause salmonellosis, a disease in humans with symptoms similar to food poisoning.

• Staphylococcus: Cockroaches can spread Staphylococcus aureus, a bacterium that can cause skin infections, pneumonia, and other illnesses.

• Streptococcus: Cockroaches can also spread Streptococcus, a bacterium that can cause strep throat and other infections.

• E. coli: Cockroaches can spread E. coli, a bacterium that can cause diarrhea and other gastrointestinal problems.

• Allergies and Asthma: Cockroaches can trigger allergies and asthma in some people. The enzymes found in the excrement, shedding body parts, eggs, and saliva of cockroaches can cause allergic reactions in many people, especially children.

It is important to note that while cockroaches can carry and spread diseases, there is little evidence linking them to specific disease outbreaks. However, cockroaches can still be a significant risk to food safety due to their ability to contaminate food and food-handling surfaces via their droppings or mechanical transfer from their bodies.