Variants growing in Oregon, breakthrough cases a very small proportion.

The Oregon Health Authority is now posting the number of COVID cases caused by variants of the novel coronavirus on their website.

The most recent numbers show almost 300 cases in Oregon are caused by variants of concern, and most are cases of B-149, a variant that emerged in California in February.

The data posted on the OHA website is weeks after people get the variants — which then have to be identified.

Through April 2, OHA said they identified 168 breakthrough cases — that is, when people who are vaccinated get COVID-19.

Of those cases, 3 people died.

OHA officials said these breakthrough cases are “a very small proportion of the more than 700,000 people in Oregon who have been fully vaccinated” in the state.

Less than two dozen of the breakthrough cases were hospitalized and most were in people older than 65 who had underlying conditions.