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1. PATHOGENIC
ORGANISMS
RATHEESH R L

2. • The definition of a pathogenic organism is an
organism capable of causing disease in its
host.
• A human pathogen is capable of causing
illness in humans.

3. • COCCI
• BACILLI
• SPIROCHAETE
• MYCOPLASMA
• RIKETTSIAE
• CHLAMYDIAE
• VIRUSES
• FUNGI
• PARASITES

4. COCCI
• Gram positive
• Staphylococcus
– Streptococcus
– Pneumococcus
• Gram negative
– Neisseria meningitis
– Neisseria gonorrhea

5. BACILLI
• Gram positive
– Bacillus anthracis
– Corynebacterium diphtheriae
– Clostridium
– mycobacterium
• Gram negative
– E. coli
– S.typhi
– Shigella dyseneriae
– Vibrio cholera

6. SPIROCHAETES
• Treponema
• Leptospira
• Borrrelia

7. MYCOPLASMA

8. RICKETTSIAE
• Rickettsiae
• Rochalimaea
• Coxiella

9. CHLAMYDIAE
• C. Pneumoniae
• C. psittaci
• C. trachomatis

10. VIRUSES
• Pox virus
• Herpes virus
• Adeno virus
• Hepatitis virus
• Picorna virus
• Orthomyxo virus
• Paramyxo virus
• Orbi virus
• Rhabdo virus
• Retro virus

11. FUNGI
• Superficial Mycosis
• Deep Mycosis

12. PARASITES
• Rhizopoda
• Leishmania
• Sporozoa