People Magazine reports that in recent weeks a half dozen senior Hillary Clinton campaign staffers, including campaign manager Robbie Mook, were taken down by a ‘pneumonia bug’ that caused two staffers to seek urgent care, with one being taken by ambulance to the hospital.

The Clinton campaign revealed Sunday afternoon, following Clinton’s mysterious collapse in the morning, that the Democratic Party presidential nominee had been diagnosed with pneumonia on Friday.

Excerpt from People’s exclusive, “Pneumonia Bug That Struck Hillary Clinton also Seriously Sickened Several Members of Her Staff.”

The illness that sickened Hillary Clinton with pneumonia and caused her to have to be escorted away from September 11 ceremonies in New York on Sunday also struck down several members of her campaign team at Clinton headquarters in Brooklyn, PEOPLE has learned. “Everyone’s been sick,” a campaign source tells PEOPLE. TRENDING: FBI Agent Who Uncovered Weiner Laptop with Hillary's Emails says FBI Leadership Told Him to Erase All of His Findings At the end of August, two weeks before Clinton was diagnosed with pneumonia, a debilitating bug was making the rounds among staff at her headquarters and campaign aides who travel with Clinton, a source tells PEOPLE. At least half a dozen senior staff were felled, including campaign manager Robby Mook. Two top advisers even needed emergency medical treatment, the source says. One top adviser diagnosed at a Brooklyn urgent-care center with a respiratory infection was being treated with antibiotics in the days before Clinton’s diagnosis. Another top adviser was taken by ambulance to the ER by ambulance after collapsing from what turned out to be severe dehydration, the source said.”

Excerpt. Please read complete People article here.

During this period Clinton aides have been lashing out at those who dared question Clinton’s health. An apology is owed.