Malaria: Although Malarai is under control, still there is a low risk, mostly in the southern Terai plains (e.g., Chitwan, Bardia). Use mosquito nets, repellents, and consider prophylactic medication like chloroquine.
Air pollution-related problems: Kathmandu has high pollution, causing coughing, asthma aggravation, and other respiratory issues. Wearing a mask in traffic-heavy areas is advisable.
Altitude-related sickness: Trekking above 2,500 m can lead to Acute Mountain Sickness (AMS), High-Altitude Pulmonary Edema (HAPE), or High-Altitude Cerebral Edema (HACE). Gradual ascent, hydration, and proper acclimatization are recommended.
Other Considerations:
Hepatitis B: Consider vaccination for longer stays or medical exposure.
Typhoid fever: Risk from contaminated food or water; vaccination recommended.

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