Voters make their choices for Democratic presidential nominee during Super Tuesday elections at a polling place inside Union Rescue Mission in the Skid Row neighborhood of Los Angeles, California, U.S., March 3, 2020. REUTERS/Kyle Grillot

WASHINGTON (Reuters) - About three out of four Democratic primary voters in four big states - California, Texas, Virginia and North Carolina - said the new coronavirus was a factor in their vote on Tuesday, according to exit polls analyzed by Edison Research.

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In Texas, the disease was cited as a factor by 78% of voters, and in North Carolina by 76%. In California, it was cited by 75% and in Virginia by 73%, the poll found.

The coronavirus, which originated in China, has spread around the world, sparking concerns of a global pandemic.