LONDON, July 5 (Reuters) - Britain has reported 27,334 new cases of COVID-19, government data showed on Monday, meaning the rise in cases between June 29 and July 5 stood at just over 53% compared with the previous seven days. A further nine people were reported as having died within 28 days of a positive test for COVID-19. A total of 45.35 million people had received a first dose of a vaccine against coronavirus by July 4 and 33.73 million people had received a second dose.