>>718294653
I've been reading a lot of trashy 80's horror novels that deal with apocalyptic scenarios. some of them are great.
>The Fungus, by Harry Adam Knight.
A London Biochemist is trying to solve world hunger by developing a strain of extremely fast-growing mushrooms. it turns out that the enzyme that causes the rapid growth is transmissible across different species of fungus and soon a lab leak leads to every species in the area going berserk, killing people and taking over the country in a nanobot grey-goo esque scenario with a faint hint of The Last of Us.
>The Rats trilogy by James Herbert
highly aggressive and intelligent killer rats begin to spread over the UK. the first two books involve government scientists eventually getting the problem under control but by the third book world war 3 happens and there is a nuclear exchange, so the tidal wave of rats emerge from their hiding places with nobody to stop them. in a followup graphic novel called The City rats have taken over the ruined world and humans are tolerated as reluctant cattle that are randomly slaughtered for food.
Possibly an inspiration for the Skaven from Warhammer Fantasy
>The Fog, by James Herbert.
Essentially 70's 28 Days Later/Crossed.
An earthquake releases a toxic bacterial gas from a government bio-warefare storage bunker. any creature who breathes it in begins to become psychotically violent or suicidal after a few hours and dies of seizures after a day or two. Since the gas is alive it continues to grow into a larger and larger cloud as it is blown around the country by the wind.