If there was, please cite.
"According to director Danny Boyle, it was the opening hospital sequence of The Day of the Triffids that inspired Alex Garland to write the screenplay for 28 Days Later."
Having been reading John Wyndham for 20+ years I would suggest that any self respecting (especially British) Sci Fi venture would be influenced by his work. Whilst not as mainstream as Arthur Clarke, Heinlein or Asimov he pretty much established the modern global catastrophy theme with Triffids, The Kraken Wakes (aliens under the sea), Midwich Cuckoos, Web and others.
His approach was inspired by HG Wells in terms of both adaptation / Darwinian themes (Time Machine - humanity splits into 2 divisions Eloi / Morlocks) and a mass extinction event (War of the Worlds) although he was the first to base his stories in an often romantic reality we can all understand (rather than alien worlds, boys own adventures, ray guns, cowboys in space etc). This cleverly draws you in before the shock occurs - something Stephen King has credited Cuckoos with.
His ideas have been systematically rifled for the last 50 years especially by TV screenwriters. Check out his early short stories from the 1930s - alien abduction, Nazi saucer bases in South America, Tesla's sonic and vibration weapons, time travel, parallel universes... and he was probably the biggest single influence on the most successful Sci-Fi TV show of all time, Dr Who. In one of Wyndham's short storys written a decade before the BBC commissioned the show, a time traveler with a female companion (in an 8 foot tube like vessel) goes into the future and faces a metal robotic adversary. With the help of other friends he meets from different time periods he discovers that within the metal cone the enemy is organic - eventually they work together by repairing another machine and escape back to their own time. Sound familiar?