The whole group of coronavirus is very peculiar. They are pleomorphic,
single stranded RNA viruses measuring 100-160 nm in diameter. There are
several factors responsible for the continuation of covid-19 pandemic.
Broadly we can look at the epidemiological triad i.e. agent, host and
environmental factors.
Setting and design – Different aspects of Covid -19
structural variations (see table 2) and its effect will be analysed.
Brief details about epidemiological triad will be outlined.