Symptoms of influenza (flu) can include: fever cough sore throat runny or stuffy nose body aches headache chills fatigue some people may also have vomiting and diarrhea. People may be infected with the flu, including 2009 H1N1 flu, and have respiratory symptoms without a fever.
The number of immigrants from Mexico and Europe living in the U.S. has actually declined slightly since 2010, but Mexicans still make up the largest immigrant population in the United States, with 11.6 million legal and illegal immigrants residing here.
For a small foreign-born group such as the Iraqi, the best data source available for estimating the size of the population is the national census. According to the U.S. Census Bureau, there were 89,892 immigrants born in Iraq living in the United States in 2000.