Curran had gone into self-isolation after being found sick on Thursday.
The youngster had gone into self-isolation in his room at the on-site hotel on Thursday after overnight illness, which had forced him out of England's intra-squad match in Southampton ahead of the first Test against West Indies.
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The development raised eyebrows, with people fearing whether the virus has found its way into England's bio-secure bubble at the Ageas Bowl, which could've put cricket's return via the three-match Test series versus the Calypso Kings under grave danger.
Thankfully, the 22-year-old Surrey cricketer was declared COVID-19 free after medical assessments, having only joined the squad at the first place after testing negative of the infection.
"England's Sam Curran has tested negative following his COVID-19 test from yesterday (Thursday)," reads an ECB statement.
"The Surrey all-rounder, who had a sickness bug has recovered and is currently missing the intra-group three-day match, which ends today, has been self-isolating in his room at the Ageas Bowl."
"He will now return to training over the next 24-48 hours and will be closely monitored by the team doctor."