Michigan added 178 new coronavirus outbreaks last week, the most of which were reported in K-12 schools, manufacturing/construction sites and long-term care facilities.
The new clusters, combined with 1,065 ongoing outbreaks, brought the state’s total active outbreaks count to 1,243, according to data from the Monday, May 10, report. That’s down about 2.7% over the last two weeks.
An outbreak is generally defined as an instance in which two or more cases are linked by a place and time, indicating a shared exposure outside of a household. Clusters being tracked by local health departments are included in the state’s online outbreak tracker, which is updated weekly on Mondays with data up to the previous Thursday.
K-12 schools reported 67 new outbreaks, followed by manufacturing/construction sites and long-term care facilities with 24 clusters, each. Retail settings accounted for 14, as did childcare/youth programs.
Outside of K-12 schools and colleges, MDHHS is not identifying specific locations or the number of coronavirus cases. However, it is listing the information by the state’s eight health district regions. (Note those regions have different numbers than the MI Safe Start Plan.)
Four regions — 1, 5, 7 and 8 — reported increases in outbreaks, while the remaining four regions noted declines.
By region, the breakdown of the clusters:
- Region 1 (Clinton, Eaton, Gratiot, Hillsdale, Ingham, Jackson, Lenawee, Livingston and Shiawassee counties): 181 clusters, with 20 new and 161 ongoing outbreaks. That’s a 1.7% increase in active clusters from the week prior.
- Region 2N (Macomb, Oakland and St. Clair counties): 267 clusters, with 52 new and 215 ongoing outbreaks. That’s an 8.2% decrease in active clusters from the week prior.
- Region 2S (city of Detroit and Monroe, Washtenaw and Wayne counties): 129 clusters, with 20 new and 109 ongoing outbreaks. That’s a 5.1% decrease in active clusters from the week prior.
- Region 3 (Saginaw, Alcona, Iosco, Ogemaw, Arenac, Gladwin, Midland, Bay, Genesee, Tuscola, Lapeer, Sanilac and Huron counties): 191 clusters, with 21 new and 170 ongoing outbreaks. That’s a 13.2% decrease in active clusters from the week prior.
- Region 5 (Allegan, Barry, Calhoun, Branch, St. Joseph, Cass, Berrien, Van Buren and Kalamazoo counties): 64 clusters, with 13 new and 51 ongoing outbreaks. That’s a 44.5% increase in active clusters from the week prior.
- Region 6 (Clare, Ionia, Isabella, Kent, Lake, Mason, Mecosta, Montcalm, Muskegon, Newaygo, Oceana, Osceola and Ottawa counties): 256 clusters, with 20 new and 236 ongoing outbreaks. That’s a 7.6% decrease in active clusters from the week prior.
- Region 7 (Manistee, Wexford, Missaukee, Roscommon, Benzie, Leelanau, Grand Traverse, Kalkaska, Crawford, Oscoda, Antrim, Otsego, Montmorency, Alpena, Presque Ilse, Cheboygan, Emmet and Charlevoix counties): 109 clusters, with 20 new and 89 ongoing outbreaks. That’s a 22.5% increase in active clusters from the week prior.
- Region 8 (Upper Peninsula): 46 clusters, with 12 new and 34 ongoing outbreaks. That’s a 9.5% increase in active clusters from the week prior.
By category, the outbreaks totaled:
- 364 clusters (67 new and 297 ongoing) at K-12 school or colleges. A total of 345 outbreaks involved K-12 schools, and the remainder were on or around college campuses.
- 244 clusters (24 new and 220 ongoing) were linked to manufacturing or construction sites.
- 180 clusters (24 new and 156 ongoing) at long-term care facilities, which include skilled nursing and assisted living facilities, adult day cares and group homes.
- 111 clusters (14 new and 97 ongoing) involved retail businesses.
- 73 clusters (14 new and 59 ongoing) occurred at child-care centers or youth programs not associated with a school.
- 72 clusters (11 new and 61 ongoing) were linked to bars or restaurants.
- 55 clusters (five new and 50 ongoing) in office settings.
- 35 clusters (seven new and 28 ongoing,) were at health-care sites, which would include hospitals, medical and dental offices, dialysis centers and other facilities providing health-care services.
- 25 clusters (four new and 21 ongoing) linked to private social gatherings, such as a wedding, funeral or party.
- 14 clusters (one new and 13 ongoing) at migrant camps or other agriculture workplaces, such as food-processing plants.
- 14 clusters (all ongoing) associated with religious services.
- 14 clusters (two new and 12 ongoing) linked to personal services, such as a hair and/or nail salon, or a gym or spa.
- 13 clusters (all ongoing) in jails and prisons.
- Five clusters (all ongoing) at homeless or other shelters.
- Two ongoing clusters linked to outdoor community exposure such as a concert, rally, protest, parade, etc.
Outbreaks will be removed from the database if there are no additional cases through a 14-day period, state MDHHS officials have said.
State officials note that the chart does not provide a complete picture of outbreaks in Michigan, and an absence of identified outbreak in a particular setting is not evidence that the setting is not having outbreaks.
“Many factors, including the lack of ability to conduct effective contact tracing in certain settings, may result in significant under-reporting of outbreaks,” the state’s website reads.
For more statewide data, visit MLive’s coronavirus data page, here. To find a testing site near you, check out the state’s online test finder, here, send an email to COVID19@michigan.gov, or call 888-535-6136 between 8 a.m. and 5 p.m. on weekdays.
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