Study: Self isolation, testing and contact tracing can contain COVID-19 spread

As COVID-19 continue to spre across globe, scientists believe that a combination of measures, including intensive testing, contact tracing and social distancing can contain spre of pandemic. According to a research published by Lancet Infectious Disease, scientists said that combining intensive contact tracing along with social distancing measures may be most effective and efficient way to curb spre of dely virus. 

recent study is first to use social contact data to quantify potential impact of control measures on reducing individual-level transmission of COVID-19 in specific settings. According to study, researchers analysed data on how approximately 40,000 people moved about UK and interacted with ors prior to COVID-19. On basis of analysis, y n simulated how combinations of different testing, isolation, tracing and physical distancing scenarios, including app-based tracing, remote working and etc., contribute to reducing secondary cases. 

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‘Successful strategies’ 

researchers t only aimed to identify oretically controlled transmission but also what practical implications of such a measure would be. y said that model is based on a series of assumptions about effectiveness of testing, tracing, isolation and quarantine. Furrmore, y also assumed that amount of time it takes to isolate cases with symptoms was on aver 2.6 days, and likelihood that ir contacts here to self-isolation was 90 per cent. 

am Kucharski, study's co-author from London School of Hygiene & Tropical Medicine in UK, said, “Our findings reinforce growing body of evidence which suggests that we can't rely on one single public health measure to achieve epidemic control”.

He ded, “Successful strategies will likely include intensive testing and contact tracing supplemented with moderate forms of physical distancing, such as limiting size of social garings and remote working, which can both reduce transmission and number of contacts that need to be traced”. 

(Im: AP; Inputs: PTI)

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