UPDATE 1-Vical posts narrower-than-expected Q2 loss

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Aug 5 (Reuters) - Biopharmaceutical company Vical Inc (VICL.O) posted a narrower-than-expected quarterly loss, helped by a fall in operating expenses.

Net loss for the second quarter was $8.5 million, or 21 cents a share, compared with a loss of $8.2 million, or 21 cents a share, a year ago.

Revenue fell 18 percent to $2.5 million, while operating expenses declined 8 percent.

Analysts on average expected a loss of 24 cents a share, before special items, on revenue of $1.5 million, according to Reuters Estimates.

Shares of the San Diego, California-based company closed at $3.18 Monday on Nasdaq. (Reporting by Vidya L Nathan in Bangalore; Editing by Vinu Pilakkott)