Question

What are some examples of Pathogenic Bacteria?

Answer 1

Hint: A pathogen is an organism that has the potential to infect its host with infectious diseases. Most pathogens can evade the host's immune responses, resulting in illnesses. The pathogen then uses the resources of the host body to replicate before leaving and infecting a new host (like a virus).

Complete answer:
A unicellular organism, similar to modern bacteria, was likely one of the first organisms to evolve on Earth. Over many millennia, life has evolved into a diverse range of life forms. We can, however, trace our roots back to this single-celled organism.
Bacteria are one of the oldest forms of life on the planet today. Even though most bacteria cause illness in humans, they have a long-term, mutual relationship with us and are vital to our survival. Bacteria are unicellular organisms that belong to the prokaryotic group and lack a true nucleus and a few organelles.
Bacteria that can cause disease are known as pathogenic bacteria. The bacteria that are pathogenic to humans are the focus of this article. The majority of bacteria species are harmless and often beneficial, but some can cause infectious diseases. Only a few hundred of these pathogenic species are known to exist in humans. The gut flora in the human body, on the other hand, contains thousands of species.
Pseudomonas aeruginosa, Mycobacterium tuberculosis, a few bacteria strains such as Listeria, Salmonella, and E.coli, and viruses such as Cryptosporidium are examples of pathogenic organisms.

Note:
A pathogenic microbe can infect a healthy person in rare cases, but the infection usually occurs when the body's defense mechanisms are compromised by local trauma or an underlying debilitating disease, such as wounding, intoxication, chilling, fatigue, or malnutrition. In many cases, it's critical to distinguish between infection and colonization, which occurs when bacteria are causing little or no harm.