Research Article

Rise and Decay of the COVID-19 Epidemics in the USA and the State of New York in the First Half of 2020: A Nonlinear Physics Perspective Yielding Novel Insights

Table 1

Description of model parameters and values as reported in Ref. [24].

ParameterDescriptionNY valueUSA value

Probability of infection per contact0.80730.7163
Proportion of being quarantined0.2Same as NY
Proportion of exposed who transition to 0.4Same as NY
Proportion of exposed who transition to 0.2Same as NY
Efficacy of quarantine0.5Same as NY
General efficacy of quarantine and isolation1.0Same as NY
Quarantine rate of exposed 0.1160/d0.1065/d
1/ is incubation period of exposed 0.1961/dSame as NY
1/ is incubation period of exposed 0.1961/dSame as NY
Isolation rate of 0.2/dSame as NY
Proportion of exposed who transition to 0.7Same as NY
Rate of progression to ICU case0.083/dSame as NY
Death rate of nonisolated infectious 0.015/dSame as NY
Death rate of isolated infectious 0.015/dSame as NY
Death rate of asymptomatic cases 0.0075/dSame as NY
Death rate of ICU patients0.0225/dSame as NY
Reduced infectiousness for asymptomatic cases0.5Same as NY
Reduced infectiousness for isolated cases 0.5Same as NY
Removal rate of 0.0714/dSame as NY
Removal rate of 0.3129/d0.3026/d
Removal rate of 0.1961/dSame as NY
Removal rate of 0.3150/dSame as NY
Removal rate of 0.2230/dSame as NY
Removal rate of 0.3908/d0.4563/d
Removal rate of 0.1125/dSame as NY