Question

what is one way the Corona virus pandemic will end?  Explain using these topics: what is a virus, vaccination, social distancing, SIR model of how diseases spread, mutation

Answer 1

a virus is madeup of core of genetic material surrounded by a protective coat called capsid .corona virus has spike protein in its envelop which is characteristic for that virus corona virus transimitted person to erson by droplets ,surface transmission ..

mutations are genetic changes . scientists identified over 200 genetic mutations in sars cov 2 that cause covid 19.mutations are not evenly distributed across viral genome , invarient part of virus could be better target for vaccines

sir model for epidemiology means suseptable ,infected and recovered .the spread of a disease can be calculated by multiplying transmission risk with average number of contacts per day . the icmr study assumes that pandemic has begun and ask whether qurantining just those people who test positive for covid 19 after showing symptoms .to the SIR model an additional component E for exposed added between s and i state .this model is called seir model .this model suggest that between 1% and 10% of population will be infected at the peak of epidemics

if you give vaccine to somebody you protect them from getting infected but also prevent them from transmitting disease .this is the idea behind herd immunity .the more contagious the disease the higher percentage of vaccination needed .this is the oneway the pandemic will end . as with sars vaccine the spike protein is main target for vaccine development vaccines should stimulate right balance of immune response and right pathway to provide protection against infection so at present to control virus transmission the way is social distancing and qurantine

social distancing is keeping space between ourself and other people stay at least 6 feet from other people .it is important for people who are at higher risk