There is no accurate way to measure the survival rate of COVID-19 yet.
Firstly, describing anything as a ‘survival rate’ is questionable because there is no accurate way to measure such a rate right now. Most people infected with Covid-19 may remain ill for a long time and would need “ongoing support.” The ‘survival rate’ is, therefore, impossible to gauge.
The survival rate has a strong relationship with age. According to the CDC's estimates, the age groups of 0 to 19 have a 99.9997% chance of survival if they contract COVID-19, but this drops to 99.995 in the age group of 50 to 69 years. The other factor, because of the comorbidities survival rate would decrease. Adults, the elderly, and people with pre-existing conditions, such as asthma, diabetes, and heart disease, appear to be more susceptible to the virus.
According to Johns Hopkins Coronavirus Resource Center, countries worldwide have reported very different case fatality ratios – the number of deaths divided by the number of confirmed cases. These figures vary and are dependant on the amount of testing in a country. If a county has tested fewer people, it will have fewer confirmed cases. Thus the case fatality rate is likely to be higher. Further, many people are infected by the virus but not counted and tabulated. They include untested, undetected cases, which make the calculation tougher. Regardless, these estimations do not match the 99.97% survival rate as the country-by-country figures are not accurate because individual countries have not made such estimations themselves.
The COVID-19 pandemic has given rise to a lot of potentially dangerous misinformation. For reliable advice on COVID-19 including symptoms, prevention and available treatment, please refer to the World Health Organisation or your national healthcare authority.