Immunizations/Communicable Diseases PowerPoint Flashcards
3 things for an infection
agent
transport
susceptible host
why are children and infants at high risk for infections
lack of immune system or immature ones
maternal antibodies passed via placental or breast milk
passive immunity
children and infants rely on what type of immunity after the passive immunity procession has worn off
active immunity
herd immunity
resistance to the spread of a contagious disease within a population that results if a sufficiently high proportion of individuals are immune to the disease
herd immunity percent
80
when does passive immunity go away
2-3 mo
mother to child through placenta or milk
natural passive
occurs when lymphocytes are activated by antigens during infection
natural active
dead or attenuated vaccines
article active
provides instant but temporary response (antibodies are not body own is no memory is created) often used to prevent very deadly diseases
EX: tents, antitoxins, antivenom, IgG
artificial passive
is passive permeant
no
the microorganism is killed but will still produce an immune response
EX: poliovirus
inactivated
the microorganism is still alive but weakened
EX: measles, influenza
live attenuated
a toxin has been weakened but still has an effect antigen
EX: tetus, diphtheria
toxoid
genetically altered organism that is used in a vaccine and will still stimulate active immunity
EX: pertussis, HPV, hepatitis B, covid
recombinant