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Complex regional pain syndrome (CRPS type 1 and type 2), sometimes referred to by the hyponyms reflex sympathetic dystrophy (RSD) or reflex neurovascular dystrophy (RND), is a rare and severe form of neuroinflammatory and dysautonomic disorder causing chronic pain, neurovascular, and neuropathic symptoms.
Neurological complications in COVID-19 are a result of SARS-CoV-2 infection or a complication of post infection which can be due to (1) direct SARS-CoV-2 invasion on the CNS via systemic circulation or olfactory epithelium directed trans-synaptic mechanism; (2) Inflammatory mediated CNS damage due to cytokine storm and endothelitis; (3 ...
Post-acute infection syndromes (PAISs) or post-infectious syndromes are medical conditions characterized by symptoms attributed to a prior infection.While it is commonly assumed that people either recover or die from infections, long-term symptoms—or sequelae—are a possible outcome as well. [1]
Viral replication then leads to viremia and the virus spreads to its secondary site of infection, the central nervous system (CNS). Upon infection of the CNS, secondary viremia results and symptoms usually begin. [5] Vaccination at this point is useless, as the spread to the brain is unstoppable. Vaccination must be done before secondary ...
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
Scanning electron micrograph of SARS virions. Severe acute respiratory syndrome (SARS) is the disease caused by SARS-CoV-1. It causes an often severe illness and is marked initially by systemic symptoms of muscle pain, headache, and fever, followed in 2–14 days by the onset of respiratory symptoms, [13] mainly cough, dyspnea, and pneumonia.
Organ damage from the acute infection can explain a part of the symptoms, but long COVID is also observed in people where organ damage seems to be absent. [ 77 ] By a variety of mechanisms, the lungs are the organs most affected in COVID‑19. [ 78 ]
The transmission of COVID-19 is the passing of coronavirus disease 2019 from person to person. COVID-19 is mainly transmitted when people breathe in air contaminated by droplets/aerosols and small airborne particles containing the virus. Infected people exhale those particles as they breathe, talk, cough, sneeze, or sing.