More than two weeks after former Theodore Roosevelt commanding officer Capt. Brett Crozier was removed from his post and tested positive for coronavirus, the Santa Rosa native remains quarantined in a Guam residence in good health, according to a source.

Crozier, 50, “is well physically, and in relatively good spirits and has never lost his sense of humor,” according to someone close to Crozier who has been in touch with him. The Chronicle agreed to withhold the name of the source due to the sensitive nature of the subject, in accordance with its anonymous sources policy.

Efforts to reach Crozier for comment have been unsuccessful.

Meanwhile, the Navy was poised to decide what’s next for Crozier, as it completes its evaluation of an internal investigation into the recent events involving the Roosevelt.

The aircraft carrier had an outbreak of coronavirus, and after it made port in Guam on March 27, Crozier sent a letter to Navy officials, warning of dire consequences if the ship’s crew wasn’t quickly evacuated. The letter became public after a copy was obtained by The Chronicle. Acting Navy Secretary Thomas Modly criticized Crozier and relieved him of command, but soon after apologized and resigned.

The internal investigation has been completed and Chief of Naval Operations Adm. Michael Gilday will make recommendations to Defense Secretary Mark Esper about Crozier’s fate and other findings from the ordeal. Gilday’s office has said Crozier’s reinstatement is not off the table.

In an interview on The Chronicle’s “It’s All Political” podcast Friday, Sen. Kamala Harris said she admired Crozier’s “candid” actions.

“Look, this is a moment where we need leaders who are transparent and speak the truth and not face any political repercussion because they embarrassed somebody,” she said. “I do believe that he spoke out of the spirit of concern and protecting his people.”

Nearly 500,000 people have signed an online petition to reinstate Crozier.

The information about Crozier’s health comes a day after the Navy identified the first Roosevelt sailor to die. Aviation Ordnanceman Chief Petty Officer Charles Robert Thacker Jr., 41, of Fort Smith, Ark., died Monday at a military hospital in Guam, four days after he was found unresponsive during a medical check in quarantine housing on the island.

On Friday, the number of sailors who have tested positive for coronavirus rose by five, with 660 now infected and 3,920 testing negative, the Navy said. A seventh sailor was hospitalized at U.S. Naval Hospital Guam and one remained in intensive care with breathing problems.

A Navy official said Friday that the first two positive tests aboard the Roosevelt were from two members of the ship’s air wing. Members of the carrier’s air group routinely fly off and on the ship and there are regular supply loads that come from other mainlands.

Also Friday, Navy Surgeon General Rear Adm. Bruce Gillingham announced that a public health investigation on Guam involving the Roosevelt will begin Monday.

Gillingham said investigators will ask for volunteers from Roosevelt sailors still on the ship and those at a Guam naval base to get another swab test, a blood test to check for antibodies and possible exposure, and to fill out a short survey. He said researchers hope to get about 1,000 volunteers.

“Findings from this outbreak investigation will help our Navy plan for avoiding or minimizing future outbreaks and improve fleet surgeons’ understanding of this disease and how it’s transmitted aboard ship,” Gillingham said.

Gillingham said “presymptomatic transmission” was a significant factor in the spread of the illness aboard the ship, calling that dynamic the “secret weapon of this virus.”

The Centers for Disease Control and Prevention will collect the tests and data and expects to conclude the probe in about a month, Gillingham said.

Matthias Gafni is a San Francisco Chronicle staff writer and Joe Garofoli is The Chronicle’s senior political writer. Email: matthias.gafni@sfchronicle.com jgarofoli@sfchronicle.com Twitter: @mgafni @joegarofoli

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