{HEAD ~ The present invention} provides {TAIL ~ an attenuated virus} which is derived from Modified Vaccinia Ankara virus and which is characterized by the loss of its capability to reproductively replicate in human cell lines 
provides
{ HEAD ~ The present invention } provides { TAIL ~ an attenuated virus } which is derived from Modified Vaccinia Ankara virus and which is characterized by the loss of its capability to reproductively replicate in human cell lines
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