Possible Clues:

• Incas came together at the start of epidemic, as a precaution
• Where clothes may be packed if required
• On the off-chance
• Just __ (as a precaution)
• As a precaution, I name patient
• It's a provision against something happening at home to sick person
• If there is a need
• Words after "just"
• Just to be sure
• In 13 across, as a precaution