a disease causing microorganism is called a pathogen. origin- pathos=suffering disease (in greek). There are two main types; bacteria and virus. all pathogens are microorganisms but all microorganisms are not pathogens. example- mycobacterium tuberculosis is a pathogen that causes tuberculosis.
Bacilli
An animal, insect, or human whose body can sustain the growth of a pathogen is known as the pathogen's host.
Infectious
Pathogenicity is the ability of an organism to cause disease.
a carrier
The concept of dominance applies only to genetic diseases. Chlamydia is an infectious disease, not a genetic disease. You can be a carrier of chlamydia; that is, you can be infected and capable of passing the infection without having symptoms.
Pathogens such as bacteria, viruses, fungi, and parasites are capable of causing disease in humans. These agents can enter the body through various routes and disrupt normal physiological functions, leading to illness and symptoms. Prompt identification and treatment of the specific pathogen are essential to manage and control disease.
Infected CD4 T-cells
A carrier is an individual who harbors an infectious agent but does not show symptoms of the disease themselves. They can unknowingly transmit the agent to others, contributing to the spread of the disease in a population.
It is a disease that is present and capable of emerging or developing but not now visible, obvious, active, or symptomatic. HIV is an example of this.
True Pathogen- are capable of causing disease in healthy persons with normal immune defenses ex. influenza virus, plague bacillus, and ect Opportunistic pathogen- cause disease when the host's defenses are compromised or when they grow in part of the body that is not natural to them