Coronavirus disease 2019 (COVID-19) - Symptoms and causes
COVID-19 is caused by infection with the severe acute respiratory syndrome coronavirus 2, also called SARS-CoV-2. The coronavirus spreads mainly from person to person, even from someone who is infected but has no symptoms. When people with COVID-19 cough, sneeze, breathe, sing or talk, their breath may be infected with the COVID-19 virus.
Viral Infection: Causes, Symptoms, Tests & Treatment - Cleveland Clinic
2022年11月23日 · Common viral illnesses include colds, the flu, COVID-19, norovirus (“stomach flu”), HPV (warts) and herpes simplex virus (cold sores). Many viruses go away on their own, but some cause life-threatening or chronic illnesses. Find a …
Long COVID, ‘Long Cold’: What to Know About Post-Acute Infection ...
2023年10月17日 · Post-acute infection syndrome encompasses chronic illnesses that occur after an infection from a virus, bacteria, or parasite. For example, this could include prolonged symptoms after COVID, caused by the SARS-CoV-2 virus; other infections caused by viruses, bacteria, or parasites; or Lyme disease, which is caused by certain types of bacteria.
The Long COVID Puzzle: Autoimmunity, Inflammation, and Other …
2024年5月27日 · Mouse models suggest that the acute phase of infection alters tissue function and triggers chronic inflammatory states in cells, specifically long-lived cells in the brain. It is also possible that the three theories outlined above—viral persistence, latent viral reactivation, and autoimmunity—all contribute to the sustained inflammation ...
Persistent Viral Infections - Medical Microbiology - NCBI Bookshelf
Chronic infection is characterized by the continued presence of infectious virus following the primary infection and may include chronic or recurrent disease. Slow infection is characterized by a prolonged incubation period followed by progressive disease.
The Relationship Between Chronic Viral Infection and Long COVID
2022年11月22日 · In a small study supported by the National Institute of Allergy and Infectious Diseases (NIAID), researchers found that chronic viral infections may influence the likelihood of someone developing Long COVID.
How Viral Infections Cause Long-Term Health Problems
2023年11月22日 · Infection with the coronavirus is known to leave behind a long legacy of health problems, many of which are characterized as long Covid.
About Chronic Symptoms Following Infections
2024年5月15日 · Many infections can result in chronic general symptoms that look similar to ME/CFS. CDC believes that by looking across the infections known to cause chronic symptoms, we can learn more about how often and why they occur, as well as how to …
Cytomegalovirus (CMV) infection - Symptoms & causes - Mayo Clinic
2022年3月23日 · Understand the symptoms and treatment of this common viral infection that can cause health problems for babies and people who have weakened immunity.
Overview of Viral Infections - Overview of Viral Infections
Some viruses, such as hepatitis B virus and hepatitis C virus, can cause chronic infections. Chronic hepatitis can last for years, even decades. In many people, chronic hepatitis is quite mild and causes little liver damage.