The national health authority says it's the winter influenza season in both southern and northern provinces. And here are five tips for keeping the disease away.

The best prevention is a flu shot. In the northern hemisphere, the peak period for seasonal flu starts from late November to February. While this advice is coming late, the optimal time to get the flu vaccine is from August to November. Second, pay attention to personal hygiene and form sanitary habits. Wash your hands frequently. Third, maintain adequate ventilation and avoid crowded places. Fourth, exercise more to strengthen immunity. Five, avoid physical contact with people with respiratory infections. You might consider wearing a mask.