Danger Zone of the survivors

in the time of 2133 the 4 of October, We was a peaceful life,when something went wrong in the middle of the night when a meteorite landed on the island of Barbados. scientists started to investigate the meteorite and found out that the meteorite wasn't a normal thing to be near, one of the scientists said run away from it but it was too late for the other scientists so the meteorite exploded killed one hundred thousands of people's who live on the island and created some gas that turns people into some mysterious creatures that people never seen in their lives. a week later after the meteorite incident has happened the government of every country decided to work on a safe Zone, most of the safe zones areas are not complete so most of the safe zones are destroy by monster species fo creatures that evolved from the meteorite gas that turns humans dead corpse into monsters and animals too. the government of the USA name the meteorite gas as covid 21 so anyone who touch it or inhale it will die in an instant kill therefore the government of each country work to get advanced technology to help them to develop strong safe zones and help the civilians all over the world. the government plan was come out very effective and very useful for the people to live in peace and adopt to the environment around them.