Incidence
The incidence of clinical HAPE in unacclimatized travelers exposed to high altitude (~4,000 m or 13,000 ft) appears to be less than 1%. The U.S. Army Pike's Peak Research Laboratory has exposed sea-level-resident volunteers rapidly and directly to high altitude; during 30 years of research involving about 300 volunteers (and over 100 staff members), only three have been evacuated with suspected HAPE.
Read more about this topic: High Altitude Pulmonary Edema
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