Fact Sheets

Loss of Smell (Anosmia)
Anosmia is a condition that causes a person to partially or completely lose his or her sense of smell. Learn about symptoms and treatment.
Vaccines for Adults
Vaccines aren’t just for kids. Thousands of adults go to the hospital each year for a serious (sometimes even deadly) disease they might have avoided if they had received the vaccination to prevent it.
Long COVID
Long COVID is defined by new, continuing, or recurring symptoms that occur four or more weeks after initial coronavirus infection. Learn about symptoms and treatment.
COVID-19
COVID-19 is the disease caused by the SARS-CoV-2, the 2019 novel coronavirus.
Acute Respiratory Distress Syndrome (ARDS)
ARDS is a potentially fatal form of respiratory failure characterized by low blood oxygen levels. Learn about symptoms and treatment.
Multisystem Inflammatory Syndrome in Children (MIS-C)
MIS-C is a rare but serious condition that can occur in children diagnosed with COVID-19. Learn about symptoms and treatment.
Influenza (Flu)
The flu is a common contagious viral infection that attacks the respiratory system. Learn about symptoms and treatment.
Pulse Oximetry
Pulse oximetry is a noninvasive, pain-free way of measuring the oxygen in a person's blood.
Thrombocytopenia
A condition in which a person has a low platelet count. Platelets are blood cells that help form clots to stop wounds from bleeding.
Extracorporeal Membrane Oxygenation (ECMO)
ECMO is a machine that takes over heart and lung function when a patient’s organs don't work on their own. Learn more about this process.