Assume you are the procurement manager of the medical charity "Doctors Without Borders" and there was an imminent infectious disease epidemic threat in a remote village in Africa. The epidemic can be prevented by vaccinating the population of in
However, due to bad roads and lack of fast transportation services to reach the site of interest, which type of vaccine would you purchase for this job considering the length of time it would take to reach the affected site and why? A live attenuated virus or killed virus vaccines?
What will be an ideal response?
Answer: Since attenuated viruses are difficult to select, standardize, and maintain and have a limited shelf life and require refrigeration, which may not be available due to the nature of the job at hand, it would be more advisable to go for a killed virus vaccine, which is relatively easy to store and maintains its potency for long periods of time.
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The organ system that is responsible for the physical and chemical breakdown of food and for the absorption, processing, and release of digestive products.
A) Muscular
G) Respiratory
B) Reproductive
H) Skeletal
C) Digestive
I) Nervous
D) Cardiovascular
J) Endocrine
E) Integumentary
K) Lymphatic
F) Urinary
In which type of cell would you likely find polysomes?
a. endocrine cells b. oocytes c. sperm d. inactive skin cell e. red blood cells
To clone an animal by embryo splitting, ____
a. there must be two host animals and two fertilized eggs b. a fertilized egg is collected from a donor mother and implanted into a host animal c. an egg is fertilized by in vivo fertilization and remains in the host animal to mature d. an embryo must be in a blastocyst stage in the host animals while the splitting takes place e. an unfertilized egg is collected from a donor mother and then fertilized in a dish by in vitro fertilization
Which of the following bacteria is visualized by acid-fast staining?
A) Escherichia coli B) Streptococcu pyogenes C) Mycobacterium tuberculosis D) Corynebacterium Diphtheriae E) Clostridium tetani