The trailer for the long awaited 28 Days Later and 28 Weeks Later sequel, 28 Years Later, has finally been released, and there are already hints about how the virus has evolved. After presenting a recap of how it all began, the 28 Years Later trailer shows survivors living on an island that is outfitted with extreme security measures. However, it does not take long before the infected appear and begin attacking the main characters, who are horrified by what they see.

https://screenrant.com/28-years-later-infected-evolve-virus-theory/