Matter of presenting medical certificate to the teachers before attending school when summer vacation is open
Matter of presenting medical certificate to the teachers before attending school when summer vacation is open.
Using available preliminary data, the median time from onset to clinical recovery for mild cases is .Although for most people COVID-19 causes only mild illness, it can make some people very ill. More rarely, the disease can be fatal. Older people, and those with pre- existing medical conditions (such as high blood pressure, heart problems or diabetes) appear to be more vulnerable..approximately 2 weeks and is 3-6 weeks for patients with severe or critical disease.The main way the disease spreads is through respiratory droplets expelled by someone who is coughing. The risk of catching COVID-19 from someone with no symptoms at all is very low. However, many people with COVID-19 experience only mild symptoms. This is particularly true at the early stages of the disease. It is therefore possible to catch COVID-19 from someone who has, for example, just a mild cough and does not feel ill.Vaccines against pneumonia, such as pneumococcal vaccine and Haemophilus influenza type B (Hib) vaccine, do not provide protection against the new coronavirus.