Treatment and management of COVID-19
Mitigation of symptoms against the SARS-CoV-2-related disease / From Wikipedia, the free encyclopedia
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The treatment and management of COVID-19 combines both supportive care, which includes treatment to relieve symptoms, fluid therapy, oxygen support as needed,[1][2][3] and a growing list of approved medications. Highly effective vaccines have reduced mortality related to SARS-CoV-2; however, for those awaiting vaccination, as well as for the estimated millions of immunocompromised persons who are unlikely to respond robustly to vaccination, treatment remains important.[4] Some people may experience persistent symptoms or disability after recovery from the infection, known as long COVID, but there is still limited information on the best management and rehabilitation for this condition.[5]
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Most cases of COVID-19 are mild. In these, supportive care includes medication such as paracetamol or NSAIDs to relieve symptoms (fever, body aches, cough), proper intake of fluids, rest, and nasal breathing.[6][7][8][9] Good personal hygiene and a healthy diet are also recommended.[10] As of April 2020 the U.S. Centers for Disease Control and Prevention (CDC) recommended that those who suspect they are carrying the virus isolate themselves at home and wear a face mask.[11] As of November 2020 use of the glucocorticoid dexamethasone had been strongly recommended in those severe cases treated in hospital with low oxygen levels, to reduce the risk of death.[12][13][14] Noninvasive ventilation and, ultimately, admission to an intensive care unit for mechanical ventilation may be required to support breathing.[5] Extracorporeal membrane oxygenation (ECMO) has been used to address respiratory failure, but its benefits are still under consideration.[15][16] Some of the cases of severe disease course are caused by systemic hyper-inflammation, the so-called cytokine storm.[17]
Although several medications have been approved in different countries as of April 2022, not all countries have these medications. Patients with mild to moderate symptoms who are in the risk groups can take nirmatrelvir/ritonavir (marketed as Paxlovid) or remdesivir, either of which reduces the risk of serious illness or hospitalization.[18] In the US, the Biden Administration COVID-19 action plan includes the Test to Treat initiative, where people can go to a pharmacy, take a COVID test, and immediately receive free Paxlovid if they test positive.[19]
Several experimental treatments are being actively studied in clinical trials.[20] These include the antivirals molnupiravir (developed by Merck),[21] and nirmatrelvir/ritonavir (developed by Pfizer).[22][23] Others were thought to be promising early in the pandemic, such as hydroxychloroquine and lopinavir/ritonavir, but later research found them to be ineffective or even harmful,[24][needs update][25][26] like fluvoxamine, a cheap and widely available antidepressant;[27] As of December 2020, there was not enough high-quality evidence to recommend so-called early treatment.[25][26] In December 2020, two monoclonal antibody-based therapies were available in the United States, for early use in cases thought to be at high risk of progression to severe disease.[26] The antiviral remdesivir has been available in the U.S., Canada, Australia, and several other countries, with varying restrictions; however, it is not recommended for people needing mechanical ventilation, and has been discouraged altogether by the World Health Organization (WHO),[28] due to limited evidence of its efficacy.[24] In November 2021, the UK approved the use of molnupiravir as a COVID treatment for vulnerable patients recently diagnosed with the disease.[29]
The WHO, the Chinese National Health Commission, the UK National Institute for Health and Care Excellence, and the United States' National Institutes of Health, among other bodies and agencies worldwide, have all published recommendations and guidelines for taking care of people with COVID-19.[30][31][5][32] As of 2020 Intensivists and pulmonologists in the U.S. have compiled treatment recommendations from various agencies into a free resource, the IBCC.[33][34]