State classification of disease causing pathogens??

Disease-causing pathogens can be classified into several categories based on different criteria. Some common classifications include:

1. Type of organism: Pathogens can be classified based on the type of organism that causes the disease. This includes bacteria, viruses, fungi, parasites, and prions.

2. Mode of transmission: Pathogens can be classified based on how they are transmitted from one host to another. This includes airborne pathogens, waterborne pathogens, foodborne pathogens, and vector-borne pathogens.

3. Location of infection: Pathogens can be classified based on the location in the body where they cause infection. This includes respiratory pathogens, gastrointestinal pathogens, urinary pathogens, and bloodborne pathogens.

4. Pathogenicity: Pathogens can be classified based on their ability to cause disease in a host. This includes virulent pathogens, opportunistic pathogens, and non-pathogenic organisms.

5. Host specificity: Pathogens can be classified based on the range of hosts they can infect. This includes pathogens that are specific to humans, animals, or plants.

Overall, the classification of disease-causing pathogens is complex and can vary depending on the specific characteristics of the pathogen in question.

Class I: Bacteria
- Gram-positive bacteria:
- Staphylococcus aureus
- Streptococcus pneumoniae
- Enterococcus faecalis
- Clostridium difficile
- Gram-negative bacteria:
- Escherichia coli
- Pseudomonas aeruginosa
- Klebsiella pneumoniae
- Salmonella enterica
- Shigella species

Class II: Viruses
- DNA viruses:
- Herpes simplex virus
- Varicella-zoster virus
- Cytomegalovirus
- Epstein-Barr virus
- RNA viruses:
- Influenza virus
- Rhinovirus
- Hepatitis B virus
- HIV

Class III: Parasites
- Protozoans:
- Plasmodium species (malaria)
- Trypanosoma species (sleeping sickness)
- Toxoplasma gondii (toxoplasmosis)
- Helminths (worms):
- Schistosoma species (schistosomiasis)
- Ascaris lumbricoides (ascariasis)
- Trichuris trichiura (whipworm infection)
- Arthropods:
- Anopheles mosquitoes (malaria)
- Aedes mosquitoes (yellow fever, dengue fever)

Class IV: Fungi
- Yeasts:
- Candida species (candidiasis)
- Molds:
- Aspergillus species (aspergillosis)
- Dermatophytes:
- Trichophyton species (ringworm)

Class V: Prions
- Transmissible spongiform encephalopathies (TSEs):
- Creutzfeldt-Jakob disease
- Kuru