hVIVO Regulatory News (HVO)

Retroscreen Virology Group plc ("Retroscreen" or the "Company")

Contract Win

The Board of Directors of Retroscreen, the AIM-quoted viral challenge quarantine and "Virometrics" specialist, is pleased to announce the signing of a Viral Challenge Model ("VCM") contract with a major US-based biotechnology company for the provision of an influenza challenge study. The contract, which is valued at £3.9m and had previously been under a Start Up Agreement, represents a significant milestone in the Company's growth.

Kym Denny, Chief Executive Officer, commented, "We are delighted to be working with such an innovative client on the development of their novel product. This contract is testament to the pharmaceutical industry's increasing awareness of the benefits of the VCM in accelerating drug development and product decision-making."

Enquiries:

Retroscreen Virology Group plc +44 207 756 1300

Kym Denny (CEO)

Graham Yeatman (FD)

Numis Securities Limited +44 207 260 1000

Michael Meade / Freddie Barnfield (Nominated Adviser)

James Black / Michael Burke (Corporate Broking)