Mycobacterium tuberculosis, the causal agent of this disease, invades macrophages and can replicate inside them. Because invasion of macrophages is a critical step for establishing a mycobacterial infection, there is much interest in understanding the mechanisms for M. tuberculosis entry into macrophages.
January 24, 2016. Winter Storm Jonas did not spare Boston its icy wrath, but the Massachusetts city definitely saw a dulled-down version of the blizzard. According to numbers from the National Weather Service, 8.2 inches fell in Boston, 7 inches accumulated in South Boston and 6.1 inches were dropped in the vicinity of Logan International Airport.
Most days of snowfall in Boston result in just a skiff of less than an inch left on the ground. On an average of 11 days a year, at least an inch of snow lands in one day. Snowstorms of over five inches a day normally occur a couple times a year.