Virus (1980)

aka Day of Resurrection

In 1982 a deadly virus wiped out most of humanity, leaving less than 1000 people alive. The search for a cure by the survivors has no single protagonist to lead it, and therefore no principal actor or actress for us to journey with, but the film still manages to ensure we keep what's important fixedly in mind.
The White House scenes aren't anything special. By contrast many of the street scenes manage to be more realistically horrifying than even horror movies get. It's a bleak, powerful drama with some shocking scenes.
Part Japanese and part English language, the 156 minute version (with subs) is the film as it should be seen. The shorter 108 minute version that's more easily found in western territories reportedly cuts out most of the best Japanese actor's scenes, and through truncation drastically changes the ending.

4 flightless birds out of 5