Erika Cheng

Review: Estimates of the severity of COVID-19 disease

This study estimates the time between onset of symptoms and outcome (death or discharge from hospital) for individuals with COVID-19 infections. Findings provide fatality ratios across the spectrum of COVID-19 disease and demonstrate a strong age-gradient in risk. A rangeRead More
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Review: Forecasting the dynamics of COVID-19 pandemic in top 15 countries in April 2020 through ARIMA model with machine learning approach

This study predicted trajectories of COVID-19 in the coming days (until April 30, 2020) around the world using an advanced Auto-Regressive Integrated Moving Average Model (ARIMA). The model’s predictions suggest that rapid infection control measures are urgently needed to curtailRead More
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Review: A COVID-19 infection risk model for frontline health care workers

This study formulates a theoretical model to calculate the risk of being infected in health care facilities and suggest ways to minimize these risks. The number of confirmed COVID-19 cases admitted in hospitals is continuously increasing in the Philippines. FrontlineRead More
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Review: When will the COVID-19 epidemic fade out?

A discrete-time deterministic epidemic model is used to make predictions about the peak of the COVID-19 epidemic in Italy. Generally, transmission dynamics of infectious disease are described by modelling population movements which assume that the population mixes at random, orRead More
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Review: Community prevalence of SARS-CoV-2 among patients with influenzalike illnesses presenting to a Los Angeles medical center in March 2020

This is a rapid sentinel surveillance study aimed to determine what proportion of mild, outpatient influenza-like illnesses were caused by SARS-CoV-2. This community-based surveillance study reports a 5% rate of COVID-19 among patients presented to the ED or urgent careRead More
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Review: Case-fatality rate and characteristics of patients dying in relation to COVID-19 in Italy

This study investigated the case fatality rate (CFR) among confirmed COVID-19 cases (N=22,512) in Italy, using Italian National Institute of Health surveillance data up to March 17, 2020. The overall fatality rate of persons with confirmed COVID-19 in the ItalianRead More
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Review: Time kinetics of viral clearance and resolution of symptoms in novel coronavirus infection

In this small sample of COVID-19 infected patients who were mostly young, male with mild infections, half were viral positive even after resolution of their symptoms. This information can provide useful tool for clinicians and policymakers to ensure that recoveredRead More
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Review: Forecasting COVID-19 impact on hospital bed-days, ICU-days, ventilator days and deaths by US state in the next 4 months

This document presents estimates of predicted health service utilization and deaths due to COVID-19 by day for the next 4 months for each state in the US. Data on confirmed COVID-19 deaths by day are from WHO websites and localRead More
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Review: Case-fatality rate and characteristics of patients dying in relation to COVID-19 in Italy

This study investigated the case fatality rate (CFR) among confirmed COVID-19 cases (N=22,512) in Italy, using Italian National Institute of Health surveillance data up to March 17, 2020. The overall fatality rate of persons with confirmed COVID-19 in the ItalianRead More
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