Pathogenic bacteria are specially adapted and endowed with mechanisms for overcoming the normal body defences, and can invade parts of the body, such as the blood, where bacteria are not normally …

Jul 25, 2025 · Pathogenic bacteria are distinct from most bacteria due to evolved traits, called virulence factors, that allow them to overcome host defenses and establish infection. Virulence indicates how …

Aug 4, 2025 · A pathogen is any microbe that causes disease in its host. It is not always a black-and-white distinction; some microbes can be harmless in one context and pathogenic in another, …

Pathogens can infect people, animals and plants. Even pathogenic organisms, like bacteria and fungi, have their own pathogens. For instance, some antibiotics are made from fungi that kill bacteria. Most …

Feb 20, 2024 · Bacteria are the most prevalent form of microorganisms and are classified into two categories based on their mode of existence: intracellular and extracellular. While most bacteria are …

Pathogenic bacteria are responsible for a myriad of infectious diseases that can significantly impact human health, leading to both acute and chronic conditions.

Many bacteria are present in humans as normal microbiota, often in large numbers and in many areas (eg, in the gastrointestinal tract and skin). Only a few bacterial species are human pathogens.