What is one of the main preventive measures taken by medical missions to ensure public health during Hajj?

حج کے دوران صحت عامہ کو یقینی بنانے کے لیے میڈیکل مشنز کی جانب سے کیے جانے والے اہم احتیاطی اقدامات میں سے ایک کیا ہے؟

Conducting religious ceremonies

Distributing religious texts

Educating pilgrims on hygiene and sanitation

Financial assistance

Educating pilgrims on hygiene and sanitation is a main preventive measure taken to ensure public health during Hajj.