Author: Vir Bannerjee Bulchandani; Saumya Shivam; Sanjay Moudgalya; S L Sondhi
Title: Digital Herd Immunity and COVID-19 Document date: 2020_4_18
ID: k8xuv5xy_3
Snippet: Recent events have challenged the public health infrastructure worldwide for controlling the spread of contagious diseases. This difficulty is partly due to the novel pathogen involved and partly due to some unusual characteristics of COVID-19 [1] , which pose unique obstacles to developing a systematic public health response. Specifically, the infection appears to be transmitted through a large number of asymptomatic and presymptomatic cases and.....
Document: Recent events have challenged the public health infrastructure worldwide for controlling the spread of contagious diseases. This difficulty is partly due to the novel pathogen involved and partly due to some unusual characteristics of COVID-19 [1] , which pose unique obstacles to developing a systematic public health response. Specifically, the infection appears to be transmitted through a large number of asymptomatic and presymptomatic cases and the fraction of such transmission is large enough to lead to an epidemic on its own, even if all symptomatic cases were immediately isolated [1, 2] . This leaves two approaches to controlling an exponential growth in the number of infected people. The first is continuous monitoring of entire populations via regular testing, which can identify new infections already during their latent phase and thus end non-symptomatic transmission. The second is the established method of "contact tracing" [3] , in which people who have been exposed to newly identified infected people are isolated before they have a chance to infect others. In principle, either approach is capable of ending the epidemic.
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