Will open windows increase the chance of infection?

Actually. good ventilation helps to reduce the amount of viruses that may exist indoors and

helps to renew indoor air. "Diluted" outdoor air is almost impossible to bring viruses indoors.

If your family members are suspected acute respiratory infection patlents, open the window but keep the door closed during ventilation. Do not use central ventilation system to avoid the air in the sick people's room entering the clean areas.

Differences between COVID-19 and Influenza

Key symptoms of COVID-19:

Shortness of breath, breathing difficulties.

The early symptoms of CovID-19 is similar with that of fiu. Therefore, it is really difficult to tell the difference between the two diseases only by symptoms such as fever, headache, muscle weakness and general discomfort. Most COVID-19 patients have lower respiratory infection symptoms such as breathing difficulties, etc. You should be alert if you find yourself "having a cold" with symptoms of breathing difficulties and shortness of breath.