FIG. 6.
Single-step growth curves at 39.5°C in S3 HeLa cells of MEF-1/EGY42 (wild), Qalyubiya/88-1 (cVDPV), Beni Suef/93 (cVDPV), Beni Suef/98 (OPV-like), and Sabin 2.
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