Differentiation of the type of influenza virus, such as type A versus B, is important because
A) the information is used to create the vaccine for the next year.
B) it determines if additional testing is necessary.
C) antigenic shift can cause the emergence of a new strain.
D) antiviral agents used for treatment depend on the type identified.
Question 2
Linda, a 54-year-old female, presents to her clinician with signs and symptoms suggestive of a porphyria.
The following laboratory tests and results are:
Feces analysis: increased coproporphyrin III/I ratio
Urine analysis: increased porphyrins and porphobilinogen
Which of the following disorders are consistent with these laboratory results?
A) Variegate porphyria B) Hereditary porphyria
C) Acute intermittent porphyria D) Porphyria cutanea tarda
Davis, Weintraub, and Lasser and the promotion of muscle cell differentiation in fibroblasts by the
Color-enhanced scanning electron micrograph of HIV virus (red) infecting T-helper cells (green).
This young child is pulling at the ear and acting fussy, two important signs of otitis media.
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