microbiology Flashcards
Obligate aerobes
Nagging pests must breath
Nocardia, pseudomonas, mycobacterium tuberculosis, bacillus
Obligate anaerobes
Anaerobes can’t breath air
Actinomyces, bacteriodes, clostridium.
Obligate intracellular
Really cold
Rickettsia, chlamydia
Facultative intracellular
Some nasty bugs may live facultatively
Salmonella, nisseria, brucella, mycobacterium, listeria, franciella, legionella, yersinia pestis
Encapsulated bacteria
Quelling reaction present ( capsule swelling). Remember to vaccinate in asplenic patients.
Shine skis: strep pneumo, heamophilus influ, ecoli, nisseria, salmonella, group b strep, klebsiella
Catalase positive organisms
PLACESS
Pseudo, listeria, aspergillosis, candida, ecoli, serration, staph auerus
major virulence factor for strep A
Protien M: inhibits phagocytosis, complement, causes adherence and is the target for humoral immunity
toxic shock syndrome is mediated by what cell types?
macrophages and T lymphocytes
infection that can cause + mono spot
CMV
Heterophil negative mono caused by? (3)
CMV, Listeria, Toxoplasma
EBV can cause
burketts lymphoma, hairy leukoplakia, hodgkins lymphoma, nasal pharnygeal carcinoma
CMV appearance on cytology
owl’s eyes
viral cause of kaposi’s sarcoma
human herpes 8
viral cause of roseola infantum
human herpes 6, high fevers but no other signs of infections. the fever will break and then cause a whole body rash for several hours
virus from monkey bites!
Human herpes virus 7
Hep A. family? morphology? pathology?
piconarvidae, ssRNA virus, incubation 3 weeks then signs of liver failure
HBsAg
Active disease
HBsAntibody
recovered infection
core antigen
new disease
core antibody
sign of past disease or chronic disease
HB e Ag
contagious
HB E antibody
not very contagious
Live attenuated vaccines
small pox, yellow fever, chickenpox, polio (sabin), and MMR
Inactivated (killed) vaccine?
Rabies, Influenza, Polio (salk), Hep A
RIP, Always
recombinant vaccine?
Hep B(HBsAg), HPV (6,11,16,18)
Delta agent
Hep D. Only infects people with Hep B.
Causes acute when coinfect together or a superinfection in a chronic hep B carrier.
the Hep D virus is considered placating defective because it must be coasted by the external coat antigen HBsAg of Hep B
Organisms that produce mono symptoms but can have a negative mono spot test
CMV, HHV-6, Toxoplasmosis
*EBV can have mono symptoms but if its producing mono symptoms it will have a positive monospot
H Pylori morphology
Gram neg., urease pos. curved bacilli
most common site for S. Aureus colonization (including MRSA)
anterior nares
