At least half of all people who survived a COVID-19 infection will experience long-term effects including weight loss, fatigue, fever, and pain, according to a new study published in the journal JAMA Network Open.

The Washington Post reports:

About 20 percent have decreased mobility, 25 percent have trouble thinking or concentrating (called “brain fog”), 30 percent develop an anxiety disorder, 25 percent have breathing problems, and 20 percent have hair loss or skin rashes. Cardiovascular issues — chest pain and palpitations — are common, as are stomach and gastrointestinal problems.

The study examined 250,351 adults and children. The authors conclude that the prevalence of “long-haul” symptoms are “enough to overwhelm existing health care system capacities, particularly in resource-constrained settings.”

According to the Centers for Disease Control and Prevention, “chronic COVID” can impact people who’s initial infections were mild. Symptoms identified by the CDC include:

  • Difficulty breathing or shortness of breath
  • Tiredness or fatigue
  • Symptoms that get worse after physical or mental activities (also known as post-exertional malaise)
  • Difficulty thinking or concentrating (sometimes referred to as “brain fog”)
  • Cough
  • Chest or stomach pain
  • Headache
  • Fast-beating or pounding heart (also known as heart palpitations)
  • Joint or muscle pain
  • Pins-and-needles feeling
  • Diarrhea
  • Sleep problems
  • Fever
  • Dizziness on standing (lightheadedness)
  • Rash
  • Mood changes
  • Change in smell or taste
  • Changes in menstrual period cycles