The following virus can be grown only in suckling mice -: (A) Coxsackie virus, (B) Rhinovirus, (C) Echovirus, (D) Poliovirus
Answer is A. It is necessary to employ suckling mice for the isolation of coxsackie virus. REF:ANANTHANARAYAN AND PANIKER'S TEXTBOOK OF MICROBIOLOGY 9TH EDITION PAGE NO:491