The Health Secretary said that while vaccination is not compulsory for most people, health workers carry a unique responsibility.
The UK Health Security Agency will offer these finger-prick tests to help improve the understanding of immunity against COVID-19 from vaccination and infection.
Javid, 51, said people should no longer "cower" from coronavirus as he urged everyone to get their vaccine doses to protect against the deadly virus.
Boris Johnson warned of the 'extreme contagiousness' of the Delta variant of coronavirus, which continues to keep the infection rate in the country at very high levels.
Health Secretary Sajid Javid confirmed on Saturday he had tested positive for COVID-19 and was now self-isolating for 10 days.
'I'm grateful that I've had two jabs of the vaccine and so far, my symptoms are very mild,' UK Health Secretary Sajid Javid said.
Minister Nadhim Zahawai also expressed confidence that British Prime Minister Boris Johnson will be able to confirm the July 19 timeline for the last stage of his lockdown easing roadmap on July 12.
Prime Minister Theresa May's Downing Street office announced the appointment in a statement. Javid was previously Britain's communities minister.