Gilbert specialises in the development of vaccines against and emerging viral pathogens.
Working with the pharmaceutical giant led to a few surreal moments.
Health Secretary Sajid Javid has said he expects a booster programme to start later in September.
Meanwhile, Sarah Gilbert's son Freddie describes his mum as always being supportive.
What becomes apparent from speaking to Gilbert and Green is that possibly we do not deserve the scientists that rescued us from the calamity of the Covid-19 pandemic.
Most experts say you should Tracking the virus: See the latest and how the.