1 Subjects: “...protection...”

2 Subjects: “...protected areas...”

3 Subjects: “...nature protection...”

4 Subjects: “...protected species...”

5 Subjects: “...ecological protection policy...”

6 Subjects: “...personal health protective behaviour...”

7 Subjects: “...degree of protection...”

8 “... workers struggle to find a vaccine to protect our health, we have had to live through situations hitherto...”

9 “..., and the necessary protection of the culture of destinations and the environment. Therefore, there is a need...”