Zombie Invasion: Is this the end of the world?

Scientists are always so curious about everything. Until one day, where an experiment gone wrong. A virus which can harm any living organism alive and eat each other to death. A group of 40 students went on a field trip somewhere on a Safari adventure where the scientists' laboratory is somewhere nearby. Until the zombies invaded every single corner of the place and has put the students into calamity. A group of 8 students were left unharmed but still finds the exit hard. With strong will and bravery. Would they be able to save their selves or leave the world in tragedy?