A licensed Northern California homeopathic doctor was arrested Wednesday on suspicion of falsifying COVID-19 vaccination cards and selling “immunization pellets” that she claimed would protect from the virus, officials announced.

Juli A. Mazi, 41, of Napa allegedly told patients that taking pellets with small amounts of COVID-19 would result in full “lifelong immunity” from the virus, according to the U.S. Department of Justice.

She also gave out Centers for Disease Control and Prevention vaccine cards to customers, telling them to complete them to make it look like they got two doses of the Moderna vaccine when they hadn’t, federal officials said.

The homeopathic doctor provided specific Moderna vaccine lot numbers and vaccine dates to evade suspicion, according to a Department of Justice news release.

Mazi was charged with one count each of wire fraud and false statements related to health care matters.

It’s the first federal criminal fraud prosecution related to homeoprophylaxis immunizations and fraudulent CDC COVID-19 vaccine cards, Department of Justice officials said.

“This defendant allegedly defrauded and endangered the public by preying on fears and spreading misinformation about FDA-authorized vaccinations, while also peddling fake treatments that put people’s lives at risk,” Deputy Attorney General Lisa O. Monaco said in a statement. “Even worse, the defendant allegedly created counterfeit COVID-19 vaccination cards and instructed her customers to falsely mark that they had received a vaccine, allowing them to circumvent efforts to contain the spread of the disease.”

In April, someone called a federal hotline to report that family members had bought the COVID-19 immunization pellets from Mazi, along with COVID-19 vaccine cards that had Moderna listed, according to the news release.

Federal officials said the Mazi was using the coronavirus pandemic to expand an immunization scheme she was already running.