With coronavirus cases on the rise, summer travelers are once again facing difficult questions. Here’s the latest travel guidance from health experts. Quarantines, Disease Rates, Content Type: Service, Vaccination and Immunization, Travel and Vacations, Coronavirus Risks and Safety Concerns, Fever, Centers for Disease Control and Prevention, United States With coronavirus cases on the rise, summer travelers are once again facing difficult questions. Here’s the latest travel guidance from health experts. NYT > Business