The Center for Disease Control, the San Francisco Department of Health, Mecklenburg County Health Department and American Airlines are all confirming that a flight attendant working the American Airlines flight AA1960 between San Francisco (SFO) and Charlotte (CLT) was infected with Hepatitis-A.
American Airlines cooperating with local health departments in San Francisco and Charlotte has provided contact information for all passengers aboard the morning flight from SFO to CLT on 21 September. The respective country health departments have contacted and provided medical guidance.

American Airlines noted how the flight attendant had displayed symptoms for days prior and additional flights may have had exposure. They are researching and will be contacting the passengers and crew on those, as yet unidentified flights.
“The safety of our customers and team members is our top priority. We are in close contact with the Centers for Disease Control and Prevention (CDC) and public health officials and will coordinate with them on any required health and safety-related measures.”
American Airlines statement
The CDC encourages all who may have been exposed to avail themselves to the Hepatitis-A vaccines.
Hepatitis A is a serious liver disease. It is caused by the hepatitis A virus (HAV). HAV is spread from person to person through contact with the feces (stool) of people who are infected, which can easily happen if someone does not wash his or her hands properly. You can also get hepatitis A from food, water, or objects contaminated with HAV.
Center for Disease Control