Table 8.

Illustration of detected stress symptoms based on PHQ-9 category.

PHQ-9 Category and Description	Top Symptoms and Topics
PHQ0: Little interest or pleasure in doing things	Feb.: Chinese journalist, koalas, snakes, Melinda gates, South Korea, World Health Organization (WHO) declared outbreak, send hell, airways suspended, etc. Mar.: Prime Minister Boris, Dr. Anthony Fauci, moved intensively, attending mega rally, Tom Hanks, Rita Wilson, etc. Apr.: stay home, bored at home, masks arrived pos, sign petition UK change, uninformed act, etc.
PHQ1: Feeling down, depressed	Feb.: Wenliang Li, whistleblower, South Korea confirms, suffering eye darkness, China breaking, global health emergency, Nancy Messonnier, grave situation, etc. Mar.: abject, despair, Kelly Loeffler, Jim, stock, Richard Burr, feeling sorry, Gavin Newsom, cynical, nazi paedophile, destroyed, etc. Apr.: social isolation, ha island, suffering, bus driver, coverings, cloth face, etc.
PHQ2: Trouble falling or staying asleep	Feb.: sneezing, coughing, avoid nonessential travel, diamond princess cruise, San Lazaro hospital, RepRooney, Dean Koontz, gun, arranging flight, etc. Mar.: calls grow quarantine, secret meetings, donates quarterly, task force, sleepy, cutting pandemic, nitrogen dioxide, aquarium closed, Elba tested, etc. Apr.: workers, healthcare, basic income, Bronx zoo, tiger, keep awaking, coughing, concealed, etc.
PHQ3: Feeling tired or having little energy	Feb.: test positive, tired dropping flies, horror, clinical features patients, national health commission, governors, flown CDC advice, weakness, etc. Mar.: blocking bill limits, drugmakers, Elizabeth fault, CPAC attendee tested, overruled health, collapses, front lines, practicing social distancing, etc. Apr.: exhausted, Boris Johnson admitted hospital, Brooke Baldwin, etc.
PHQ4: Poor appetite or overeating	Feb.: food market, Harvard chemistry, citizen plainly, Commerce Secretary Wilbur, White House asks, scientists investigate, etc. Mar.: obesity, anemia, Iran temporarily releases, CDC issued warning, blood pressure, Obama holdover call fly, etc. Apr.: White House, force, Crozier, roosevelt, Peter Navarro, confirmed cases, etc.
PHQ5: Feeling bad about yourself	Feb.: worst treating, accelerate return jobs, tendency, investigating suspected cases, unwanted rolls, mistakenly released, vaccine, predicted kill, etc. Mar.: testing January aid, executive order medical, VP secazar, risking, embarrassment ugly, unnecessarily injured, etc. Apr.: invisible, house press, gross, insidious, irresponsible, shame, trump, worst, obvious consequences, etc.
PHQ6: Trouble concentrating on things	Feb.: dangerous pathogens, distracted, ignorant attacks, funding, camps, travel advisor, let alone watching, etc. Mar.: dogs, Fox news cloth, institute allergy, hands soap water, self-quarantined, Christ redeemer, valves, etc. Apr.: Theodore Roosevelt, confused, Dalglish, economy shrinks, U.S. commerce, etc.
PHQ7: Moving or speaking so slowly that other people could have noticed	Feb.: panic, Santa Clara, furious, wall street journal reports, pencedemic bus, dead birds, Tencent accidentally, unhinged disease control, etc. Mar.: Theodore, federal reserve, panic buy, councilwoman, anxiety, USS Theodore, frantic, avian swine, etc. Apr.: chief medical officer, social distancing, NHS lives, rallies jan, CDC issued warning, enrollment, Ron Desantis, etc.
PHQ8: Thoughts that you would be better off dead	Feb.: death people, China death, death toll rises, cut, China deadly outbreak, Hubei, lunar year, laboratories linked, first death, etc. Mar.: Washington state, dead, prevent, causing, worse, kill, death camps, increasing, etc. Apr.: death, patient, living expenses, abused, uninsured, treatment, death camps, etc.