Javid, who has been health secretary for three weeks, has backed Prime Minister Boris Johnson`s plan to scrap all remaining legal coronavirus restrictions from Monday, despite a fresh surge of cases fuelled by the highly transmissible Delta variant.
“This morning I tested positive for COVID,” Javid said in a tweet, adding he had taken a rapid lateral flow test, and was awaiting confirmation from a PCR test, which needs processing in a laboratory.
“I`m waiting for my PCR result, but thankfully I have had my jabs and symptoms are mild.”
Javid tweeted on March 17 that he had received a first shot of Oxford/AstraZeneca`s COVID-19 vaccine, posting a picture of him getting a second dose on May 16.
Vaccines are not 100% effective at preventing infection, but fully-vaccinated people are less likely to get seriously ill with COVID-19 even if they can test positive.
Real-world analysis published by Public Health England has found that two doses of the AstraZeneca vaccine are 60% effective against symptomatic disease from the Delta variant and 92% effective against hospitalisation.
Britain is facing a new wave of cases of COVID-19, but Johnson and Javid claim the vaccine programme has largely broken the link between COVID-19 cases and mortality, although Johnson has said that the country should reconcile itself to the prospect of more deaths from COVID.
Britain has the seventh highest COVID-19 death toll in the world, and has fully vaccinated two-thirds of adults, although it is not vaccinating children.
Some scientists have warned that the government`s reopening plans for England are dangerous given the significant number of people who remain unvaccinated and the fact that vaccines are not 100% effective.