👉 Infection is an invasion of the body by pathogens—microorganisms such as bacteria, viruses, fungi, or parasites—that can cause disease. Contributors to infection include various factors that facilitate this entry and proliferation within the host. Pathogens often exploit breaches in the body's defenses, such as cuts, abrasions, or weakened immune responses. Environmental factors like contaminated water, food, or surfaces can introduce pathogens into the body. Additionally, certain conditions, including a compromised immune system due to illness, stress, or medication, increase susceptibility to infection. Host factors, such as age, genetics, and underlying health issues, also play a role in determining the likelihood and severity of infection. Understanding these contributors is crucial for developing preventive measures and treatments to combat infectious diseases.
