Health officials predict that there will eventually be enough vaccine for everyone but that some vaccinations will have to wait until December. Usually flu season doesn't hit Texas in earnest until January, so even a late vaccination will protect most people. But the flu virus is starting to appear. No cases are yet confirmed in Dallas, but a few have turned up in Central Texas. People with flu symptoms should cover their noses and mouths while coughing and sneezing, and stay home to avoid infecting others.
People can also help protect themselves from infection by washing their hands frequently.
But even stores are out of vaccine for the moment, said Mr. Walsh, of the supplier Maxim. The company hopes to resume the flu-shot clinics on Nov. 11. By the time the clinics restart, more health-care providers will probably have vaccine, Mr. Walsh said. We weren't trying to take vaccine from anybody.