Rapid accumulation of virulent rift valley Fever virus in mice from an attenuated virus carrying a single nucleotide substitution in the m RNA.

The following information was missing from the Funding section. This study was supported by NIH/NIAID grant 1UO1-{"type":"entrez-nucleotide","attrs":{"text":"AI062636","term_id":"3832743","term_text":"AI062636"}}AI062636.