SAN DIEGO -- For the first time, San Diego County health officials confirmed they are completely out of the swine flu vaccine, 10News reported.

On Wednesday, health officials said all seven of their public health clinics have run out of both the injection and nasal mist versions of the vaccine. Health officials added they expect to receive more vaccine but it may be a while before a new shipment arrives.

Many people who visited local health clinics Wednesday morning told 10News they saw a sign that indicated the county has depleted their supply.

Calls to the county's 211 information hotline get callers this message: "The county has expired their supply of H1N1 vaccine."

Tony Tran showed up at the Colina Del Sol clinic hoping to get immunized, but was told that would not happen.

"I have to find a private doctor. If they have it, I'm gonna go do it," said Tran.

Immunization sites around the county were completely out of the vaccine -- a far cry from just this past weekend when long lines formed at the sites.

County health officials said Tuesday they received about 20 to 60 doses per site for pregnant women only. They said the reason why the vaccine production is not matching the demand is because of the lengthy process of developing and growing the culture that ultimately becomes the vaccine.

"The vaccine production is moving more slowly than is ideal, and it's not a process you can rush," said Karen Waters-Montijo of the County Health Department.

Health officials also said each batch of vaccines needs to be tested before distributed, and that process takes time.

The vaccine is still available at private clinics and some drug stores. At the Walgreen's store in El Cajon, some San Diegans tried to take advantage of the nasal mist that is still available at some local pharmacies. As of Wednesday afternoon, many of the locations had 20 doses left.

"They only have the one that goes up the nose, and unfortunately, I can't have that; I have asthma," said Jenna Roulan.

San Diegans can call 211 to see when the county will receive more vaccine.

Health officials recommend checking with private providers for vaccine availability.