Infectio, Disease And Epidemiology Flashcards
(25 cards)
Mutualism
Both organism benefit
Communalism
One benefits and the other neither gets harm nor benefit
Parasitism
One benefits and the other gets harm
Mycobacterium
Normal flora/ microbiota
Acquire at birth, present through out life, mostly mutualists
Skin (eyes and ears)
Micrococcus, staph, epidermidis, diphtheroids, yeast. Transient
Upper respiratory tract ( down the epiglottis)
Neisseria, staph, eprdermidis, diphthrleroids, streptococcus, harmophilus.
Lower RT epiglottis south
Sterile
Upper GI to stomach
Mouth is the same as URT neisseris, staph. Epidermidis, diphtheroids, streptococcus
Lower GI intestines to rectum
Many GNR enterobacteriaceae and anaerobes such as bacteroides fragilis
Lower Urinary/resproductive tract (south of the bladder, urethra and vagina
Females; same as skin micrococcus, staph. Epi, diphtheroids, yeast
Male less than females same as skin plus mycobacteria smegmatis.
Upper RT north of bladder and cervix
Sterile
Blood , heart , internal organs
Sterile
Perineal , pericardial, thoracic cavities
Sterile
Joint
Sterile
Brain and spinal cord
Sterile
Placenta and fetus
Sterile
Opportunistic pathogen
Infection Stress Metabolic disorder Pregnancy Drugs/ alcohol abuse Medications Cancer Age Diet and exercise
Contamination
The mere presence of microbes in he body
Infection
Organism encases body external defenses, multiplied and becomes established in the body
Disease/ morbidity
Results if the invading pathogen alters normal body functions
Reservoir of disease
Continual sources of infection
Human: aids, gonorrhea
Animal: rabies, Lyme disease
Zoonoses
Glycoproteins hemaggluten
Necessary for attachment of virus to host cell
Glycoprotein neuraminidase N1
Involved in Viral penetration into the host cell and release from the host cell.
