WASHINGTON, Nov 15 (Reuters) - The U.S. Centers for Disease Control and Prevention (CDC) advised against travel to the Czech Republic, Hungary and Iceland because of a rising number of COVID-19 cases in those countries. The CDC raised its travel recommendation to "Level Four: Very High" for the three countries, telling Americans they should avoid travel there. The CDC separately lowered its COVID-19 travel advisory to "Level One: Low" for Japan, India, Pakistan, Liberia, Gambia and Mozambique.