PBS 2020 Unit 3 Quiz 11 Modes of Transmission

pathogenicity

• ability to stimulate an immune response in host; a property of molecules to which an adaptive immune response can be generated

• ability to produce disease in host; ability to cause disease

• ability of the pathogen to invade and multiply in the host; ability of an agent to invade a host and replicate

• ability to produce serious disease in a host; degree of pathogenicity

immunity to disease that occurs as part of an individual's natural biologic makeup

• natural immunity

• attenuated vaccine

• cause of emerging infection

• example of portals of entry

reasons why parents may not want to immunize their kids

• -afraid of giving more than one vaccine at a time

  -correlation between autism and immunizations

  -religious beliefs

  -fear that immunizations will cause disease vaccine is preventing

  -natural immunity is better at building immunity

• May be by the direct projection of droplet ray onto the conjunctiva or onto the mucous membranes of the eye, nose or mouth during sneezing, coughing, spitting, singing or talking (droplet spread-limited distance)

• Number of new tuberculosis cases: 9,945 (2012)

  Number of new salmonella cases: 53,800 (2012)

  Number of new Lyme disease cases: 30,831 (2012)

  Number of new meningococcal disease cases: 551 (2012)

• -Identification

  -Infectious agents

  -Occurrence

  -Reservoir

  -Mode of transmission

  -Incubation period

  -Period of communicability

  -Susceptibility

characteristics of infectious agents

• 1. infectivity

  2. pathogenicity

  3. virulence

  4. antigenicity

  5. toxicity

• 1. vehicle-borne

  2. vector-borne

• 1. contact (direct or indirect)

  2. droplet

  3. airborne

  4. common vehicle

  5. vector borne

• newly identified clinically distinct infectious disease, or the reappearance of a known infectious disease after its decline

Answer: Some agents have more than one reservoir

• Can communicable diseases have more than one reservoir?

• What are characteristics of infectious agents?

• What are biological vector-borne indirect transmission?

• What sort of communicable diseases call for faster reporting?

toxigenicity is

• ability of the pathogen to invade and multiply in the host; ability of an agent to invade a host and replicate

• ability to produce a toxin in host; ability to produce a toxin

• ability to ward off infection

• ability to stimulate an immune response in host; a property of molecules to which an adaptive immune response can be generated

What is ability to produce serious disease in a host; degree of pathogenicity?

• antigenicity

• endemic

• natural immunity

• virulence

What do we use a pathogen in non-lining (unable to cause disease) for?

• attenuated vaccine

• susceptible host

• non-attenuated vaccine

• active natural immunity

What is this: -immediate person-to-person transfer

-may acquire via direct physical contact (sexual transmission or skin-to-skin contact

• direct transmission

• indirect transmission

• communicable diseases

• infectious disease

any person who can "catch" the illness us called?

• susceptible host

• passive artificial immunity

• microbial suspensions

• non-susceptible host