Epidemiology of Covid-19 DOI Open Access
Serge Aho

Опубликована: Июль 13, 2023

We provide a summary of various epidemiological parameters related to COVID-19 such as incubation period, serial interval and other parameters. Understanding these is important for developing prevention strategies. SARS-CoV-2 can be transmitted by droplets close contact, but there evidence airborne transmission. Aerosol-generating procedures have been identified one the specific risk factors healthcare workers. Super-spreading events refer situations where small number individuals cause majority infections. The basic reproductive (R0) spread parameter (k) are used characterise transmissibility disease. Estimated values R0 range from 2 3 estimated value k 0.1.The duration infectiousness depends on viral load shedding. Viral varies according clinical spectrum, type variant vaccination status. relationship between infectivity not fully understood.With regard frequency symptoms signs COVID-19, fever, cough, fatigue dyspnoea common. prevalence olfactory gustatory dysfunction (OGD) studies countries. Age comorbidities associated with dysfunction.Estimates proportion asymptomatic patients 6% 96%. Asymptomatic transmission considered likely control measures.We reviewed quantitative semiology reported sensitivity, specificity likelihood ratios signs.Finally, we also review (including health care workers), co-infections, epidemiology variants..

Язык: Английский

Epidemiology of Covid-19 DOI Open Access
Serge Aho

Опубликована: Июль 13, 2023

We provide a summary of various epidemiological parameters related to COVID-19 such as incubation period, serial interval and other parameters. Understanding these is important for developing prevention strategies. SARS-CoV-2 can be transmitted by droplets close contact, but there evidence airborne transmission. Aerosol-generating procedures have been identified one the specific risk factors healthcare workers. Super-spreading events refer situations where small number individuals cause majority infections. The basic reproductive (R0) spread parameter (k) are used characterise transmissibility disease. Estimated values R0 range from 2 3 estimated value k 0.1.The duration infectiousness depends on viral load shedding. Viral varies according clinical spectrum, type variant vaccination status. relationship between infectivity not fully understood.With regard frequency symptoms signs COVID-19, fever, cough, fatigue dyspnoea common. prevalence olfactory gustatory dysfunction (OGD) studies countries. Age comorbidities associated with dysfunction.Estimates proportion asymptomatic patients 6% 96%. Asymptomatic transmission considered likely control measures.We reviewed quantitative semiology reported sensitivity, specificity likelihood ratios signs.Finally, we also review (including health care workers), co-infections, epidemiology variants..

Язык: Английский

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