▁Study ▁Group ▁on ▁Param y x ov ir idae , ▁International ▁Committee ▁on ▁the ▁Tax onomy ▁of ▁Vir uses , ▁since ▁ 1 9 9 7 . ▁ ▁Research ▁ ▁While ▁Lamb ▁was ▁at ▁The ▁Rock ef eller ▁University , ▁he ▁published ▁ 2 2 ▁papers ▁with ▁P urn ell ▁Ch opp in . ▁Their ▁work ▁mainly ▁focused ▁on ▁sequ encing ▁vir al ▁gen es ▁and ▁character izing ▁vir al ▁prote ins . ▁During ▁this ▁time , ▁Lamb ▁character ized ▁the ▁influen za ▁A ▁virus ▁M 2 ▁protein , ▁which ▁became ▁the ▁focus ▁of ▁much ▁of ▁his ▁later ▁work . ▁ ▁After ▁moving ▁to ▁North western ▁University , ▁E van ston , ▁Illinois ▁USA , ▁Lamb ▁set ▁up ▁his ▁names ake ▁labor atory , ▁where ▁he ▁has ▁since ▁conducted ▁research ▁and ▁collabor ated ▁with ▁several ▁scient ists . ▁His ▁labor atory ▁has ▁studied ▁influen za ▁virus ▁and ▁param y x ov ir uses , ▁more ▁specifically , ▁how ▁they ▁rep licate . ▁They ▁have ▁also ▁studied ▁the ▁action ▁of ▁the ▁M 2 ▁and ▁B M 2 ▁prote ins ▁and ▁en velop ed ▁virus ▁assembly . ▁Lamb ' s ▁research ▁has ▁had ▁a ▁significant ▁impact ▁on ▁the ▁understanding ▁of ▁how ▁vir uses ▁work ▁at ▁the ▁mole cular ▁level ▁through ▁different ▁points ▁in ▁the ▁life ▁cycle . ▁ ▁In ▁ 1 9 9 7 , ▁Lamb ▁and ▁his ▁team ▁developed ▁a ▁way ▁to ▁stop ▁influen za ▁vir uses ▁from ▁leaving ▁their ▁host ▁cells , ▁and ▁stop ▁the ▁vir uses ▁at ▁the ▁end ▁of ▁their ▁rep