Early studies in Israel have found that coronavirus vaccines can reduce infection rates by up to 60 per cent in those who have received their first jab, as the country's health minister stressed there was still a need for extreme caution. According to Israeli broadcaster Channel 12, preliminary research by healthcare provider Maccabi said the first dose of the vaccine reduced the risk of catching coronavirus by 60 per cent after 14 days. A similar study by Clalit, another Israeli healthcare provider, put the figure somewhat lower at 33 per cent after testing 200,000 citizens who had received their first vaccination. In an interview with the Telegraph, Yuli Edelstein, the country's health minister, said Israelis needed to stay vigilant as there was still a risk of catching the virus within two weeks of receiving a jab. "Those who are getting the first shot should still be very, very cautious about their behaviour, due to the partial resistance to the disease," Mr Edelstein said.