describe vibrio cholerae
gram negative curviform bacteria
cholera
how are curviform bacteria characterized
curved or spiral shape: no endoflagellum
what does vibrio cholerae cause
acute dehydration secretory diarrhea due to enterotoxin
how is vibrio cholerae spread
contaminated water and food
how many pandemics have there been of vibrio cholerae
7
describe campylobacter jejuni
gram negative curviform bacteria
causal agent of gastroenteritis
what is campylobacter jejuni linked to
Guillain-Barre syndrome: autoimmune disorder via molecular mimcry between C.j. LPS & neuron glycolipid
chicken associated
how does autoimmunity develop with C.j. infection
c. jejun tricks the immune system to product antibodies which recognize some nerves as c.jejuni and demyelinates the nerves
describe Helicobacter pylori
gram negative curviform bacteria
causal agent of gastritis, gasteric ulcer, and cancer
what does helicobacter pyori do to the human body
inhabits the human stomach and uses urease to break down urea to neutralize the acidity of the surrounding environment
describe a mollicutes bacteriA
lacks cell wall and thus are pleomorphic
plasma membrane contains sterols
genome is very small
describe Mycoplasma pneumoniae
Mollicutes bacteria
causal agent of primary atypical pneumonia
describe Rickettsial bacteria
requires other cells to gain what it needs for growth (obligate intracellular parasites)
uses arthropods as vectors
what do Rickettsial bacteria target
lining of blood vessels during infection = rash symptoms and circulatory changes
describe Rickettsia prowazekii
Rickettsial causal agent of Epidemic Typhus (different from typhoid fever)
how do Rickettsia prowazekii transmit
humans are the sole host
disease flourishes under conditions of crowding and poverty
describe Rickettsia typhi
rickettsial causal agent of endemic typhus
how is rickettsia typhi vectored
fleas
zoonotidc transmission from rodents/opposum
describe the symptoms for both types of Typhus
symptoms are similar of fever, muscular. pain, followed by rash
describe Rickettsia rickettsia
causal agent of rocky mountain spotted fever
most fatal tick-borne disease in USA
describe Coxiella burnetii
Rickettsial causal agent of Q fever
most infectious bacteria known
what can coxiella burnetii be spread
airborne particles
animal exposure
describe Chlamydial bacteria
obligate intracellular parasites
unable to product ATP
life cycle involves an infectious form and a reproductive form
describe Chlamydia trachomatis
chlamydial causal agent of ocular trachoma, inclusion conjuctivitis, chlamydiosis (STI)
