B.
Cross-sectional study.
✓
D.
Randomized controlled trial.
✓
B.
Recall bias (a type of information bias).
✓
C.
Basic Reproductive Number (R0?).
✓
A.
Advise parents to keep children home for a week.
✓
B.
Notify public health authorities immediately, facilitate stool sample collection, and reinforce hand hygiene protocols.
✓
C.
Only treat the children who are severely ill.
✓
D.
Blame the daycare for poor sanitation without investigation.
✓
A.
Many false negative results.
✓
B.
Many false positive results, leading to unnecessary anxiety and follow-up tests.
✓
C.
Accurate diagnosis immediately.
✓
D.
No need for further testing.
✓
A.
Pre-clinical studies.
✓
C.
Mode of transmission.
✓
A.
Wait for the pathogen to be fully characterized.
✓
B.
Initiate rapid risk assessment, develop containment strategies, and prepare for potential outbreak/pandemic.
✓
C.
Dismiss it as a non-issue.
✓
D.
Only focus on research.
✓
