1
what is a pathogen?
microorganisms that produce disease
what is a prion?
disease producing molecule composed of protein and lack nuclei
what are the signs of second stage infectious syphilis?
cuts corner of mouth, mucous patches on tongue, measles
who was joseph lister?
surgeon who recognized air-borne microoganisms in post surgical infections
how is birkett lymphoma caused?
epstein-barr virus EBV
what shape is a spirochete?
spiral
what does human prion disease effect?
the brain
______________ is the leading cause of death world wide.
tuberculosis
what bacteria are rod shaped?
bacilli
which causes chicken pox virus?
herpes zoster
what are aerobes?
need oxygen to grow
what microorganisms can lie and multiply only in a host cell?
viruses
what immunization is given to dental assistants to avoid viral infections?
hep b
what is rickettsaie?
bacteria that live in the intestinal tract
what disease is known as lock jaw?
tetanus
what are anaerobes?
do not require oxygen to grow
can an antibiotic fight a virus?
no
tuberculosis
a provirus is found when a virus establishes a _____ state in a host cell
latent
what is tetanus caused by?
spore forming bacillus found in soil
what is oral candidiasis caused by?
what chemicals destroy viruses internally?
bleach, iodine, phenol, formaldehyde
what disease infects the t cells?
HIV
can a viral disease be transmitted through radiation?
no
what is a chronic infection?