Why are there many viruses in spring?

The climate is getting warmer in spring, and all kinds of pathogenic microorganisms, bacteria, viruses, etc. It also grows and breeds, thus causing various epidemic diseases, such as influenza, mumps, epidemic meningitis, measles, rubella, viral pneumonia, chickenpox and so on. Therefore, in the coming spring, we must pay attention to disease prevention and health care. Colds can happen all year round, but spring is the most common season. Wind-heat cold is characterized by acute onset, mild aversion to cold, severe fever, headache, yellow cough, sore throat, thirst, yellow urine and red tongue tip. The cause of this disease has a lot to do with the changeable climate in spring. Due to the large temperature difference between morning and evening, some people who are physically weak, have low upper respiratory disease resistance and are busy with work are more likely to catch cold and induce colds.