How do warzones and natural disasters become breeding grounds for infectious diseases?

Crowding in shelters/camps, increasing contact between people

Mixing of different regional populations with different levels of vaccination or endemic disease

Contamination of drinking water

Spread of infectious mud or soils (leptospirosis)

Disruption or delay of vaccination programs

Death or disappearance of key medical and administrative staff

Destruction of key facilities (laboratories, hospitals, clinics, etc.)

answerthe above statement is (false);