2022

A follow up study of cycle threshold values of SARS-CoV-2 in Hunan Province, China

Since the epidemic of the severe acute respiratory syndrome coronavirus 2 (SARS-COV-2), many governments have used reverse transcription polymerase chain reaction (RT-PCR) to detect the virus. However, there are fewer measures of CT values …

新冠疫情预测预警平台

结合人口流动大数据和跨区域传播的数学模型,对当前新冠肺炎全国流行状态进行模拟仿真,模拟当前全国及300多个城市每日实时的新增感染人数以及累计感染人数。

Viral dynamics of omicron BA.2.76 variant of SARS-CoV-2 in a cohort of COVID-19 patients

In order to reduce individual variations and estimate the positive duration (Ct value < 30), B-spline basis functions (using the 4th-degree basis function) were selected to model the change of Ct value after infected (Table S1, Supplementary …

Optimal control strategies of SARS-CoV-2 Omicron supported by invasive and dynamic models

**Backqround**: There is a raising concern of a higher infectious Omicron BA.2 variant and the latest BA.4, BA.5 variantmade it more dificult in the mitigation process against COVID-19 pandemic. Our study aimed to find optimal controlstrategies by …

Global differences in natural transmission rates of Monkeypox virus

The results showed the mean value of median Rt value for MPX of 1.36 (SD: 0.21) and the median R0 value of 1.63 (IQR: 1.34–1.72) where the R0 values we calculated were higher than the estimates listed on the WHO official website.

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Epidemiology of tsutsugamushi disease and its relationship with meteorological factors in Xiamen city, China

Tsutsugamushi disease (TD) is an acute infectious disease caused by Orientia tsutsugamushi. This study aimed to analyze the epidemiological features of TD, investigate chigger mites and their hosts, and investigate the meteorological factors …

Mathematical Models Supporting Control of COVID-19

Mathematical models have played an important role in the management of the coronavirus disease 2019 (COVID-19) pandemic. The aim of this review is to describe the use of COVID-19 mathematical models, their classification, and the advantages and …

Study on the interaction between different pathogens of Hand, foot and mouth disease in five regions of China

Objectives This study aims to explore the interaction of different pathogens in Hand, foot and mouth disease (HFMD) by using a mathematical epidemiological model and the reported data in five regions of China. Methods A cross-regional dataset of …

Natural history and cycle threshold values analysis of COVID-19 in Xiamen City, China

This study elaborated the natural history parameters of Delta variant, explored the differences in detection cycle thresholds (Ct) among cases. Natural history parameters were calculated based on the different onset time and exposure time of the …