Cockroaches are known to be carriers of various pathogens and can spread dozens of diseases. These include bacteria, such as Salmonella and E. coli, which can cause food poisoning and other gastrointestinal issues. They can also carry allergens that may trigger asthma and allergic reactions in sensitive individuals. It's crucial to address any cockroach infestations promptly to minimize the risk of disease transmission in homes, businesses, or public properties.