Links For Today Posted on January 21, 2020 by The Editor We Stood By While Saudis Helped Criminals Flee U.S. WHO calls for emergency meeting on new virus in China, as cases spread to health care workers Notably, vaccine effectiveness has declined in each of the past four flu seasons for which data are available: from 48 percent in 2015-16 to 40 percent in 2016-17, 38 percent effective in 2017-18 and 29 percent effective in 2018-19.