SAN DIEGO -- A female San Diego State student who lives off-campus probably has contracted swine flu, which would bring the total number of cases in the county to nine.

"Based on lab results we received this afternoon from the San Diego County Health Department, the SDSU student who was diagnosed (Tuesday) with a suspected case of swine flu has now been elevated to `probable status,"' SDSU President Stephen Weber said in a campus alert posted late Wednesday night.

According to Weber, the student's sample has been sent to the Centers for Disease Control for a final diagnosis. It's expected to take several days for those results.

Classes at the university were expected to continue Thursday but "a confirmed case may change the ball game," said Dr. Gregg Lichtenstein, medical director for SDSU's Student Health Services.

The sick student's condition was not considered life-threatening, according to university officials, who said she will not return to classes until she is no longer considered infectious.

The number of cases of swine flu in San Diego County rose Wednesday, from five to eight, according to county public health officials. The new cases involve a 3-year-old boy, a 23-year-old man and a 38-year-old man.

The U.S. Centers for Disease Control and Prevention confirmed Wednesday that a Marine at a San Bernardino County base where Camp Pendleton-based Marines routinely train has swine flu.

The infected Marine at Marine Corps Air Ground Combat Center Twentynine Palms will remain isolated in his barracks, military officials said.

Thirty other Marines he had been in contact with will also be quarantined for five days as a precaution. None of the other Marines displayed any symptoms of swine flu, according to the Marine Corps.

Twentynine Palms is in San Bernardino County about 150 miles northeast of San Diego County, but troops from Camp Pendleton in Oceanside frequently go there for training.

All of those who were infected in San Diego County have recovered and did not require hospitalization, according to Dr. Wilma Wooten, the county's public health officer.

So far, there are 109 cases of swine flu confirmed in the United States, according to the CDC. The nation's first swine-flu death -- a 23-month-old girl from Mexico -- was reported in Texas Wednesday morning. Hours later, the World Health Organization issued a statement saying an international health emergency was "imminent."

The recent outbreak of swine flu around the globe is most prevalent in Mexico, where about 2,500 people have developed influenza and 159 people are believed to have died from the virus.