pathogens of human body systems

Question 1

○ Causes boils, impetigo, and scalded skin syndrome.

Answer 1

Staphylococcus aureus:

Question 2

○ Causes erysipelas, necrotizing fasciitis (“flesh-eating disease”).

Answer 2

Streptococcus pyogenes:

Question 3

Causes acne.

Answer 3

Propionibacterium acnes:

Question 4

○ Tinea (ringworm, athlete’s foot): Trichophyton, Microsporum, Epidermophyton.

Answer 4

fungal infections

Question 5

○ Varicella-zoster virus: Chickenpox, shingles.
○ Human papillomavirus (HPV): Warts.

Answer 5

viral infections

Question 6

○ Streptococcus pyogenes: Strep throat, scarlet fever.
○ Corynebacterium diphtheriae: Diphtheria.

Answer 6

1. Upper Respiratory Tract:

Question 7

○ Influenza virus: Causes flu.
○ Mycobacterium tuberculosis: Tuberculosis.
○ Bordetella pertussis: Whooping cough.

Answer 7

lower respiratory tract

Question 8

○ Histoplasma capsulatum: Histoplasmosis.
○ Aspergillus fumigatus: Aspergillosis.

Answer 8

fungal pathogens

Question 9

○ Peptic ulcers.

Answer 9

Helicobacter pylori:

Question 11

○ : Salmonellosis, typhoid fever.

Answer 11

Salmonella spp.

Question 12

Gastroenteritis (ETEC, EHEC).

Answer 12

e. coli

Question 13

cholera

Answer 13

vibrio cholerae

Question 14

○ Norovirus: Viral gastroenteritis.
○ Rotavirus: Severe diarrhea in children.
○ Hepatitis viruses (A, B, C, D, E): Affect liver function.

Answer 14

viral infections

Question 15

○ Giardia lamblia: Giardiasis.
○ Entamoeba histolytica: Amoebic dysentery.
○ Taenia spp.: Tapeworm infection.

Answer 15

parasitic infections

Question 16

1. Bacterial Infections:
   ○ Neisseria meningitidis: Meningococcal meningitis.
   ○ Clostridium tetani: Tetanus.
   ○ Clostridium botulinum: Botulism.
2. Viral Infections:
   ○ Rabies virus: Rabies.
   ○ Poliovirus: Poliomyelitis.
3. Fungal Infections:
   ○ Cryptococcus neoformans: Cryptococcal meningitis (in immunocompromised individuals).
4. Parasitic Infections:
   ○ Toxoplasma gondii: Toxoplasmosis (severe in immunocompromised or fetuses).

Answer 16

nervous system

Question 17

1. Bacterial Infections:
   ○ Borrelia burgdorferi: Lyme disease.
   ○ Yersinia pestis: Plague.
   ○ Rickettsia rickettsii: Rocky Mountain spotted fever.
2. Viral Infections:
   ○ Dengue virus: Dengue fever.
   ○ Epstein-Barr virus: Mononucleosis.
3. Parasitic Infections:
   ○ Plasmodium spp.: Malaria.
   ○ Trypanosoma cruzi: Chagas disease.

Answer 17

Circulatory and Lymphatic Systems

Question 18

1. Urinary Tract Infections (UTIs):
   ○ Escherichia coli: Most common cause of UTIs.
   ○ Proteus mirabilis: Causes complicated UTIs.
2. Sexually Transmitted Infections (STIs):
   ○ Bacterial STIs:
   ■ Chlamydia trachomatis: Chlamydia.
   ■ Treponema pallidum: Syphilis.
   ■ Neisseria gonorrhoeae: Gonorrhea.
   ○ Viral STIs:
   ■ Herpes simplex virus (HSV): Genital herpes.
   ■ Human papillomavirus (HPV): Genital warts, cervical cancer.
3. Fungal and Parasitic Infections:
   ○ Candida albicans: Vaginal yeast infections.
   ○ Trichomonas vaginalis: Trichomoniasis.

Answer 18

urinary and reproductive systems

Question 19

1. Sepsis and Septic Shock:
   ○ Caused by bacteria like Escherichia coli, Staphylococcus aureus.
2. HIV/AIDS (Human immunodeficiency virus):
   ○ Attacks CD4+ T cells, leading to immune suppression.
3. Systemic Fungal Infections:
   ○ Histoplasma capsulatum, Candida albicans.

Answer 19

immune system