Japan will shorten the interval for COVID-19 booster shots for senior citizens in general from eight months to seven from February next year, Prime Minister Fumio Kishida said Friday, as the country ramps up efforts to curb the spread of the Omicron coronavirus variant.An eight-month interval has been set "in principle" between the second and third vaccination shots, but the government is seeking to prioritize boosters for the elderly and health care workers.Kishida also told reporters that Japan has reached a basic agreement with Pfizer Inc. to secure 2 million doses of the U.S. pharmaceut…READ FULL ARTICLE