The National Institutes of Health expects within a month to issue a revised environmental impact statement on a proposed high-security laboratory at Boston University where scientists would study the world’s deadliest germs and viruses, a federal official said yesterday. The announcement that NIH will issue a new draft environmental statement, as well as conduct another public hearing, was made two weeks after BU and public health officials disclosed that three researchers had fallen ill with tularemia last year after working with the bacterium that causes the disease in a lower-security lab.
