Từ khóa: #immune response

After recovering from Covid-19, many people supposed that they already have antibodies so they don't worry about getting sick again. According to medical experts, those who were previously infected with SARS-CoV-2 had a significantly higher likelihood of reinfection.

Smoking can increase the risk of COVID-19 transmission within the community as it weakens lung function and immune response to infections, an official said.