Communicable disease/ infectious - Answer caused by micro-organisms (bacteria,
virus, parasites and fungi) that can be spread directly or indirectly from person to
person
-how you get someone sick
Direct transmission - Answer commonly spread directly from one person to another
Indirect transmission - Answer no human-human contact, but transmitted via
contamination of an object/surface, or via another vector (ie mosquito, tick etc)
resistance - Answer ability of a host to withstand infection
Natural immunity - Solution innate response to infectious agent
Acquired immunity - Solution result of prior natural exposure to disease
Passive immunization - Solution takes place by transfer of specific antibodies from an
immunized individual to a non-immunized individual-usually by placenta, breastrnilk or
antibody infusion-may also occur by transfusion
Active immunization- Results in antibodies made by the individual host either by vaccine
or exposure to infectious agent-acquired is apart of this
Herd immunity-Resistance a group of people have to invasion or spread of illness-
requires high proportion to be immune- exposure unlikely
Used to protect more vulnerable populations
, Question 1: infectious diseases are responsible for what percent of deaths worldwide
Answer 25
Contributing factors to infectious diseases Answer Societal events, healthcare, food
production, human behavior travel- vaccine compliance, environmental change climate
change- extreme hot-cold, public health, microbial adaptation
goals of infectious diseases Answer prevent
control
eradicate
which infectious disease is the ONLY ever eradicated disease and when Answer
Smallpox in 1950
Bioterroism highest concern Answer anthrax
small pox-do not vaccinate for anymore
plague
what was used as bioterroism historically - Answer gasses in wars
Vaccine preventable diseases are - Answer Very effective and very safe, decrease in
child mortality rates preventing communicable disease
who runs the vaccine schedule - Answer CDC in US
Problem with not vaccinating children - Answer right now we have a herd immunity to
these due to the amount of children vaccinated but the more that kids are not
vaccinated the less immunity we have causing outbreaks
infected food - Answer bacterial, viral or parasitic infection of food along process of
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