The Animal and Plant Health Inspection Service (APHIS) has issued a conditional license to Zoetis, Inc., Establishment No. 190, of Lincoln, Nebraska, for the manufacture and distribution of the Rift Valley Fever Vaccine, Modified Live Virus.

This conditional license was issued on the basis that the licensee has demonstrated the product has a reasonable expectation of efficacy. Several safety studies have established the product's safety. The conditional license will expire 2 years from August 30, 2013.

Rift Valley fever (RVF) is a viral, zoonotic disease occurring in domestic livestock. The virus is spread by mosquitos and is found primarily in Sub-Saharan Africa.

Read more from USDA/APHIS.