PATHOLOGY

Detailed explanation-1: -Typical examples of ‘accidental’ pathogens include Neisseria meningitidis or Escherichia coli. Obligate pathogens require a host to fulfil their life cycle. All viruses are obligate pathogens as they are dependent on the cellular machinery of their host for their reproduction.

Detailed explanation-2: -Pathogenic organisms are of five main types: viruses, bacteria, fungi, protozoa, and worms.

Detailed explanation-3: -Infectious diseases are caused by pathogens, which include bacteria, fungi, protozoa, worms, viruses, and even infectious proteins called prions. Pathogens of all classes must have mechanisms for entering their host and for evading immediate destruction by the host immune system.

Detailed explanation-4: -common cold. flu. meningitis. warts, including genital warts. oral and genital herpes. chickenpox/shingles. measles. viral gastroenteritis, including norovirus and rotavirus. More items •03-Apr-2019

Detailed explanation-5: -Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. Even smaller than bacteria, viruses cause a multitude of diseases ranging from the common cold to AIDS. Fungi. Parasites. 18-Feb-2022