A California man has tested positive for the H5N1 bird flu, and authorities are calling for more than 50,000 people to come forward with information about their friends and family members who may have been exposed.

State health officials say they are trying to trace the infected person’s contacts but so far they have only been able to trace his own phone.

Officials say there are now over a million people who have been reported infected with the coronavirus, and the number is expected to grow.

The man, identified as Anthony, was hospitalized on Saturday and is being treated at a hospital in Los Angeles.

He was diagnosed with the H1N1 coronaviruses, and he has been taking antifungals, officials said.

The California Department of Public Health and Environment said he is likely to have received his first dose of antibiotics within days.

Anthony’s doctor, Dr. Thomas Kullgren, told local media that the virus could have spread to his lungs through coughing or sneezing, and that he is “at risk for pulmonary fibrosis” if he continues to have contact with the air.

The virus has been detected in the air, water and soil in California, and it is also known to be transmitted by direct contact.

The state has seen a spike in coronaviral cases in recent weeks, with one man dead and five others confirmed in the state.