How would you justify that an emerging infectious disease is not always a new disease?Select all that apply
1. Due to the disease being undetected
2. Due to reappearance of the disease
3. Due to antibiotic-resistant bacteria
4. Due to breakdown in public health measures
1, 2, 5
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The six conditions which must be met for infections to spread in a population are collectively referred to as the
A) autoimmune system. B) chain of infection. C) mode of transmission. D) nonspecific immune system.
The ability of histidine to buffer hydrogen ions is because histidine contains
A. a free carbon atom that accepts hydrogen ions. B. an ionizable group. C. bicarbonate molecules. D. None of these answers is correct.
Which of the following acts in the same direction as body motion?
A. skin friction B. propulsive drag C. wave drag D. all of these answers are correct
The auricle directs sound waves to the tympanic membrane
Indicate whether the statement is true or false