Viruses and bacteria that can infect a host organism and may cause illness are referred to as pathogens. Pathogens are microorganisms that can lead to disease, and they can affect a wide range of hosts, including plants, animals, and humans. Pathogens include not just viruses and bacteria, but also other types of infectious agents such as fungi and parasites.
what is Viruses and bacteria can infect a host organism (plant, animal, human or a bacterium) and may cause illness. called
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