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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 ...
The COVID-19 pandemic has impacted healthcare workers physically and psychologically. [1] Healthcare workers are more vulnerable to COVID-19 infection than the general population due to frequent contact with positive COVID-19 patients. Healthcare workers have been required to work under stressful conditions without proper protective equipment ...
Flattening the curve is a public health strategy to slow down the spread of an epidemic, used against the SARS-CoV-2 virus during the early stages of the COVID-19 pandemic. The curve being flattened is the epidemic curve, a visual representation of the number of infected people needing health care over time. During an epidemic, a health care ...
Initial estimates of the basic reproduction number (R 0) for COVID-19 in January 2020 were between 1.4 and 2.5, [58] but a subsequent analysis claimed that it may be about 5.7 (with a 95 percent confidence interval of 3.8 to 8.9). [59] In December 2021, the number of cases continued to climb due to several factors, including new COVID-19 variants.
Long COVID or long-haul COVID is a group of health problems persisting or developing after an initial period of COVID-19 infection. Symptoms can last weeks, months or years and are often debilitating. [3] The World Health Organization defines long COVID as starting three months after the initial COVID-19 infection, but other agencies define it ...
The original vaccine was 90% effective against developing symptomatic COVID-19 infection and 100% effective against moderate and severe disease, according to results published in December 2021.
The World Health Organization (WHO) is a leading organisation involved in the global coordination for mitigating the COVID-19 pandemic within the broader United Nations response to the pandemic. On 5 January 2020, the WHO notified the world about a "pneumonia of unknown cause" in China and subsequently began investigating the disease.
Transmission of COVID-19. 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 ...