After four nights of tense clashes with police and several high-profile arrests, protests appeared to calm in Ferguson, Mo., on Thursday night, with vigils held in cities nationwide.
Groundbreaking for the 173-mile canal is set for December, but critics warn the waterway will cause irreparable environmental and social damage. The government has withheld outside firms' assessments.
Nearly 2,000 cases have been reported, but staff in West Africa say there are likely many more. The World Health Organization is also coordinating a "massive scaling up" of the international response.
A study found that 60 percent of elderly patients who visited an emergency department in 2013 were malnourished. But doctors say it can be relatively easy to help seniors get the food they need.