Question

question 9 (bonus) (1 point)
symptoms of disease differ from signs of disease in that symptoms
are changes felt by the patient
are specific for a particular disease
are changes observed by the physician
always occur as part of a syndrome
question 10 (1 point)
the rise in herd immunity amongst a population can be directly attributed to
vaccinations
improved handwashing
none of these answers
antibiotic-resistant microorganisms
increased use of antibiotics

Explanation:

• Question 9: Symptoms are subjective experiences felt by the patient (e.g., pain, nausea). Signs are objective (e.g., fever, rash).
• Question 10: Herd immunity is achieved when a high percentage of a population is vaccinated, reducing disease spread. Handwashing helps prevent transmission but not directly build herd immunity. Antibiotics treat bacterial infections, and antibiotic - resistant microbes are a problem, not a cause of herd immunity.

Answer:

• Question 9: are changes felt by the patient
• Question 10: vaccinations