The health episode fueled long-simmering conservative conspiracy theories about Clinton’s health and provided a fresh line of attack for rival Donald Trump, who has frequently questioned whether Clinton has the stamina to serve as commander in chief.

The health details made public by the Democratic presidential nominee included a description of the pneumonia diagnosis Clinton received last week Friday. Her illness became public after she left Sunday’s 9/11 memorial service early and was seen on video staggering while getting into a van.

WHITE PLAINS, N.Y. — Hillary Clinton is ‘‘recovering well’’ from pneumonia and remains ‘‘fit to serve as President of the United States,’’ her doctor said in a letter released Wednesday by her campaign.


Facing criticism about a lack of transparency when it comes to her health, Clinton’s campaign promised to disclose more detailed information about her health this week.

The letter released Wednesday by the campaign stated that Clinton underwent a chest scan that revealed she had ‘‘mild, non-contagious bacterial pneumonia,’’ according to Clinton’s physician, Dr. Lisa Bardack, chair of internal medicine at CareMount Medical in Mount Kisco, New York. She was treated with a 10-day course of Levaquin, an antibiotic used to treat infections.

Bardack said Clinton is up to date on all vaccines, including two given to help prevent pneumonia — Prevnar and Pneumovax. The letter did not state when she received those vaccines.

‘‘She is recovering well with antibiotics and rest,’’ wrote Bardack, who also authored a letter about Clinton’s health released in July 2015. ‘‘She continues to remain healthy and fit to serve as President of the United States.’’

Clinton, 68, has blood pressure of 100 over 70. Her total cholesterol was 189; her LDL or ‘‘bad’’ cholesterol was 103, and her HDL or ‘‘good’’ cholesterol was 56 — all within healthy levels and not signaling the need for any medications. She has also had a normal mammogram and breast ultrasound, according to the letter.


She takes thyroid and allergy medicines and the blood thinner Coumadin, prescribed as a preventative after she suffered a blood clot resulting from a 2012 concussion.

The blood clot, which was in a vein in the space between the brain and the skull behind the right ear, led Clinton to spend a few days in New York-Presbyterian Hospital and take a month-long absence from the State Department for treatment.

Clinton has spent the past three days out of the public eye, recuperating at her suburban New York home. She'll return to the campaign trail Thursday, with a rally in North Carolina and a speech before a Hispanic group in Washington.

‘‘I just talked to her — she’s feeling great and I think she'll be back out there tomorrow,’’ former President Bill Clinton said Wednesday, when he stepped in for his wife at a previous scheduled campaign event in Las Vegas. ‘‘It’s a crazy time we live in, you know, when people think there’s something unusual about getting the flu.’’

Trump, too, has said he plans to release the details of a recent physical this week. On Wednesday, he handed over a one-page summary of that exam, conducted by his longtime physician, Dr. Harold Bornstein, to Dr. Mehmet Oz while taping an episode of Oz’s show.

Ever the showman, Trump’s appearance on ‘‘The Dr. Oz Show’’ was billed by the campaign as a discussion about his general well-being and his family’s medical history.


The show does not air until Thursday and the campaign declined to immediately disclose the results. But a release from the show said ‘‘Dr. Oz took Mr. Trump though a full review of his systems,’’ including his nervous system, cardiovascular health, prostate health and family medical history.

Bornstein had previously written a note declaring the 70-year-old Trump, if elected, would be the healthiest president in history. He later said he had written the letter in five minutes as a limousine sent by the candidate idled outside.

Lemire reported from Flint, Michigan. Associated Press Chief Medical Writer Marilynn Marchione contributed to this report from Milwaukee. Donna Cassata contributed from Washington and Michelle Rindels from Las Vegas.