A 17-year-old member from the United States, developed worsening dizziness, vomiting and dehydration while at a remote camp in the Okavango Delta, Botswana. After receiving minimal relief from initial treatment by a camp doctor, her condition persisted and she was evacuated by helicopter to a hospital in Maun. She was diagnosed with acute gastritis, admitted overnight for observation and showed improvement before discharge the next day. She has since returned home to the US.