Table 1.

Comparison between the three waves of COVID-19.

Subject	1st wave	2nd wave	3rd wave
Time	March 2020	July 2020	After Christmas 2021
Precautionary measures	Extremely high (Obligatory)	Mandatory	Neglected from some people
Changes in symptoms	Fever, cough, sore throat, chest and muscle pain, confusion, dyspnoea, headache, anosmia, and ageusia	-Communal cold, fever, pneumonia, dyspnea and cough Sudden death	Flu symptoms and neurological effect
Mortality rate	Horrible rates	Increasing rates	Lower compared to prior waves
Economical effect	Completely stopped	Affected	Less affected
Social activities	Completely stopped	Decreased	Returned as it is
Vaccination	Not available	Under investigation	Available
Re-infection	Not appeared	Available	More common
Mutations	Not present	Not appeared	Present new variants