Bacteria as Parasites Flashcards
Dynamics of the Host-Parasite Relationship
2 terms for when 2 species interact in such a way that both receive benefits.
Mutualism or Symbiosis
Term for an interaction where one organism benefits and the other is neither helped nor harmed
Commensalism
Term for an interaction where one organism benefits and the other is harmed
Parasitism
Where in the body does the commensal Staph. epidermidis usually reside?
Skin
In what 2 places of the body do the commensals Staph. aureus and Strep. pyogenes usually reside?
Skin or respiratory tract
In what 2 places of the body does the commensal Candida albicans usually reside?
Skin or GU tract
Where in the body does the commensal Neisseria meningitidis usually reside?
Nose & throat
Where in the body do the commensals Strep. mutans and Actinomyces usually reside?
Mouth
What are the bacteria HACEK (Haemophilus,
Actinobacillus, Cardiobacterium hominis,
Eikenella corrodens, Kingella) all known to cause?
Endocarditis
Bacteroides, Bifidobacterium, Eubacterium, Coliforms, Enterococci, Bactobacilli, and Clostridium all tend to live where in the body?
Colon
Where in the body does the symbiote lactobacilli usually reside?
Small intestine or reproductive tract
Are most commensal bacteria in the colon aerobic or anaerobic?
Anaerobic
Where in the body does commensal group B strep tend to reside?
Female reproductive tract
Name three ways that commensals can become pathogenic.
Tissue damage, immunosuppression, antibiotics
Is colonization resistance considered innate immunity or adaptive immunity?
Innate
