Pathogen Pathogens are tiny organisms that can make you sick if they get inside your body. Viruses, bacteria, fungi, parasites and prions are pathogens. They’re commonly called germs. …

Pathogenicity is the potential disease-causing capacity of pathogens, involving a combination of infectivity (pathogen's ability to infect hosts) and virulence (severity of host disease). Koch's …

Oct 21, 2025 · Pathogens—bacteria, viruses, fungi, and parasites—are microorganisms that invade a host and cause illness. Learn more and how to protect yourself.

Apr 26, 2025 · A pathogen is a living thing that causes disease. Viruses and bacteria can be pathogens, but there are also other types of pathogens.

Pathogens are infectious micro-organisms, germs, or biological agents that cause infectious diseases or illnesses in the host human. The ability of a pathogen to cause disease is called …

These common themes are the focus of this chapter. First, we introduce the basic features of each of the major types of pathogens that exploit features of host cell biology. Then, we …

Aug 5, 2025 · Pathogens are microscopic agents that exist all around us. While many microbes are harmless or even beneficial, certain types can invade our bodies and disrupt normal …

Apr 3, 2019 · A pathogen is any organism that causes disease. Viruses, bacteria, fungi, and parasites are all examples of pathogens. Your body is naturally full of microbes.

Aug 21, 2025 · To determine the distribution of emm types and the association between specific emm types and disease severity in order to guide vaccine development To track antimicrobial …

Revise the four main types of pathogens: bacteria, viruses, fungi, and protists. Learn how they cause disease and how the body defends itself. Includes real-world disease examples.