Sunny days come with sun, heat, walks... and ticks! They live in wooded and humid areas, tall grasses... and take advantages of the passage of a human or animal host to settle and feed upon. During their blood meals, they can transmit viruses, bacteria or parasites that cause various diseases.
Although there is no absolute protection against these diseases, it is important to know some simple prevention rules that will allow you to considerably reduce the risk of bites.
More information here (in French only)