** Shares of drugmaker AstraZeneca PLC AZN.L up 1.7% at
10,270p amid a wider upbeat market
** Co to buy US-based vaccine developer Icosavax Inc
ICVX.O in a deal valued at up to $1.1 billion
** Shares of ICVX up 45.4% at $15.25 in premarket trading
** Deal to bolster AstraZeneca's respiratory syncytial virus
(RSV) vaccine portfolio
** Deal values ICVX at $15 per share in cash at closing,
plus a non-tradable contingent value right for up to $5 per
share in cash if certain milestones are met
** Shares of AZN down 8.6% YTD
** As of last close, ICVX up 32.1% YTD
(Reporting by Saikeerthi in Bengaluru)
((Saikeerthi@thomsonreuters.com;))