The number of COVID-19 cases in Massachusetts now stands at 50,969, as health officials announce nearly 5,000 new cases of the virus.

Officials announced 4,946 new cases of the virus as of Friday, which they note is due to a reporting error made by Quest, a national commercial laboratory. The Department of Pubic health says there has been a backlog of nearly 10,000 patient results dating back to April 13 that has been incorporated into today’s data.

Officials also announced 196 new deaths, bringing the statewide total to 2,556. The state also reported 20,137 new tests that have been carried out for the virus.

More than half of the reported deaths — 1,429 — were in long-term care facilities. The share of the death toll among the elderly in long-term care has been steadily increasing.

Suffolk County continues to have the highest rate of infection among all counties, with 1,320 per 100,000 residents, followed by Middlesex, Plymouth, Norfolk and Essex, with between 504 and 857 per 100,000.

Hampden County has the highest death rate, however, with 63 per 100,000 residents, followed by Norfolk, Suffolk and Franklin, with 52, 46 and 43, respectively.

The state began releasing more comprehensive data on the outbreak earlier this week, though there were number of statistics that had to be corrected. The new data shows, among other things, the number of cases per hospital; rates of infection, hospitalization and death by county and age group; and nursing home information.

The move to release more data is a shift from the Baker administration’s approach to reporting earlier in the health crisis. Health officials initially limited data to cases and deaths by county. Baker has since tweaked what officials are willing to disclose, opting to share town-level data after facing pushback from lawmakers, local officials and residents.

The latest figures come as Gov. Charlie Baker addressed the rising unemployment numbers during his administration’s daily briefing. Baker on Friday touted the state’s Pandemic Unemployment Assistance program, which rolled out Monday, as a way of helping to provide relief to residents who aren’t eligible for traditional unemployment benefits, like the self-employed and so-called “gig” workers.

Baker said officials have already processed over 100,000 claims under the new program; that on top of the roughly 650,000 claims that have been filed under the traditional unemployment program, he said, since March 15. That’s four times as many people who filed for unemployment benefits in February.

Baker said the number of people out of work and requesting assistance is “mind-boggling and concerning.”

But many residents who are eligible to collect regular unemployment have not been receiving the additional $600 unemployment check promised through the federal stimulus bill on time after getting their first one. The supplemental $600 checks come through the CARES Act, and are available to those who are are collecting regular unemployment for a maximum of 39 weeks.

Here are the cases listed by county:

Barnstable County: 747

Berkshire County: 425

Bristol County: 2,697

Dukes County: 15

Essex County: 6,841

Franklin County: 217

Hampden County: 3,060

Hampshire County: 396

Middlesex County: 11,681

Nantucket County: 9

Norfolk County: 4,979

Plymouth County: 4,160

Suffolk County: 10,724

Worcester County: 4,227

Unknown location: 791

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