Premature infants are known to have immature immune systems compared to term infants; however. the impacts of ex utero immune development are not well characterized. Our previous retrospective clinical review showed prolonged T cell lymphopenia in a subset of extremely premature infants. suggesting that they may have lasting abnormalities in their T cell compartments. https://www.roneverhart.com/117-Varick-Street-Tribeca-NY-1914/