Los Angeles - California health officials on Wednesday ordered any recent travelers to the state from an Ebola affected country who have had contact with an infected patient to be quarantined for 21 days.
California Department of Health Director Dr. Ron Chapman said people who had been to the Ebola zone but not come in contact with an infected person would not be subject to the quarantine.
In the meantime, President Barack Obama has come out strongly against individual states implementing quarantines, Sapa reports.
New York and New Jersey have both implemented the rule for health workers returning from Liberia, Sierra Leone and Guinea.
Obama said such quarantines discourage US volunteers from heading "straight into the heart of the Ebola epidemic" and mean fewer Americans will help fight the disease.