Comments
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May require passage with large inocula before satisfactory titers are obtained. Recognized reference strain: Pereira, H.G. et al., Virology 20:613, 1963. Derived from NIAID V-212-001-014. HA activity has not been demonstrated. Produces tumors at sites of inoculation in newborn hamsters (s.c., i.c., intrathoracic).
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Effect on Host
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CPE; refractile rounding and sloughing
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