August 26, 2015 12:20 am Deadly Amoeba ‘Very, Very Rare': Doc NBC 7’s Candice Nguyen reports on the death of Kelsey McClain after the 24-year-old San Diego woman swam in the Colorado River. US & World Videos 2:33 CDPH releases updated Covid-19 isolation guidelines 1:11 What is ‘factitious disorder imposed on another,' or FDIA? 3:18 Drug and alcohol abuse increase during the holidays, experts say 0:34 FDA expands eye drop recall to include 27 additional products 1:15 What is dengue fever?