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Clinical, immunological and virological characterization of COVID-19 patients that test re-positive for SARS-CoV-2 by RT-PCR
Re-positive SARS-CoV-2 was not caused by the secondary infection and was identified in around 14% of discharged cases suggesting a lower transmission risk, especially through a respiratory route. Expand
Assessing spatiotemporal patterns of multidrug-resistant and drug-sensitive tuberculosis in a South American setting
Subgroup analysis suggests the appearance of resistance may be driven by increased transmission, and interventions should aim to reduce the infectious duration for those with drug-resistant disease and improve infection control. Expand
Viral infection and Transmission in a large well-traced outbreak caused by the Delta SARS-CoV-2 variant
  • B. Li, A. Deng, +41 authors J. Lu
  • Medicine
  • medRxiv
  • 12 July 2021
The investigation on daily sequential PCR testing of the quarantined subjects indicated the viral load of the first positive test of Delta infections was ~1000 times higher than that of the 19A/19B strains infections back in the initial epidemic wave of 2020, suggesting the potential faster viral replication rate and more infectiousness of the Delta variant at the early stage of the infection. Expand
Economic impact of the first wave of the COVID-19 pandemic on acute care hospitals in Japan
It is suggested that the hospitals treating COVID-19 patients were negatively incentivized, and total claimed hospital charges decreased in April, May, June 2020 by 7%, 14%, and 5%, respectively, compared to the same months in 2019. Expand
Dynamical balance between the transmission, intervention of COVID-19 and economic development
Results indicate the existence of interaction and mutual restraint among the transmission, intervention and economy, in which strong coupling of COVID-19 and economy would trigger disease outbreak and form poverty trap, while adaptive isolation of at-risk population could effectively reduce morbidity at the cost of least economic loss. Expand
Execution of intervention matters more than strategy: A lesson from the spatiotemporal assessment of COVID-19 clusters in Nepal
Movement restriction appears to be the most effective non-pharmaceutical intervention against the COVID-19 for resource-scarce countries with limited health care facilities and better allocate resources and improve interventions on the pandemic for containing it efficiently. Expand
Capturing noroviruses circulating in the population: sewage surveillance in Guangdong, China (2013-2018)
The long-term dynamic correlation between NoV distribution in sewage and in the local population is described by using high-throughput sequencing and operational taxonomic unit (OTU) analysis to improve the understanding of the viral origin and evolution. Expand