2025–2026 Respiratory Season Update
Welcome to Between 2 Graphs! Flu, RSV, Covid, and the snow have all showed up for 2026.
Current Overview:
Influenza (Flu): In Summit, we had a spike in Flu cases over the holidays, and if you look at the cumulative Flu cases graph below you will see that we pretty close to where we were this time last year (a few more cases this year than last year). Wastewater surveillance in the U.S. is showing high concentrations for Flu, and outpatient visits for influenza-like-illness (ILI) is the highest seen in decades. The Flu variant that is circulating is called H3N2 subclade K. Data shows that this year’s flu vaccine is providing 30-40% protection from hospitalizations. So, if you havent done so, come in and get your Flu shot.
RSV: RSV has shown up recently in Summit County; we are seeing an increasing trend in cases. Nationally, wastewater is high for RSV. Texas is reporting high percentages of positive RSV tests (11%+), and states in the Northeast are reporting moderate percentages.
COVID-19: Wastewater in Summit County is all in the watch category with increasing trends in Coalville and Silver Creek. Across the state, lots of sites have low concentrations with a few in the elevated category. Check out the state map below. Nationally, Covid wastewater is high.
Measles: Measles cases in Utah have been increasing over the past couple of months with not much of a sign of slowing down, there have been 20 new cases in the past week. Utah had the 4th highest case count in the U.S. for 2025. There are currently no positive cases in Summit County. For the full rundown on Measles, check out the Measles tab
Check out the graphs below for more information on flu, RSV, and COVID in Summit County. As always, my goal is to make local trends easy to follow and help you make informed decisions for yourself and your family.
If you haven’t already, now’s a great time to:
The snow is finally falling, get out there and enjoy it (thank you to everyone who did their snow dance or whale laps) & thanks for reading! Here’s to another season of staying informed—and staying healthy—between two graphs.
To schedule a time to get a Flu or COVID shot, please call any of our health department locations:
| Park City: | 435-333-1500 |
| Kamas: | 435-783-3161 |
| Coalville: | 435-336-3234 |
Seasonal Respiratory Disease Graphs
COVID-19 Wastewater Concentrations
Laboratory testing for COVID-19 has greatly decreased since the 2020-2021 season. Due to low testing numbers, case counts appear to be very low for COVID-19. However, we can look at COVID-19 concentration levels in the wastewater to better understand the amount of COVID-19 circulating in our community.
Individuals with covid can shed the SARS-CoV-2 virus in their feces, even if they don’t have symptoms. The virus can then be detected in wastewater, enabling wastewater surveillance to capture the presence of SARS-CoV-2 shed by people with and without symptoms. This allows wastewater surveillance to serve as an early warning that COVID-19 is spreading in a community.
Reading the Graphs: The graphs below show the amount COVID-19 detected in the wastewater (displayed as Millions of gene copies, per person, per day) as well as the daily case rate (displayed as the number of new cases each day per 100,000 people) for the past year. The color bar in-between the wastewater and case rate graphs categorizes the concentration level of COVID-19 detected in the wastewater.
Click here For more information regarding COVID-19 Wastewater monitoring, including monitoring results for additional sites in Utah
Wastewater graphs display annual data up to: December 30, 2025
Wastewater graphs: Utah Wastewater Surveillance System
↑ 0 Since last week
↑ 20 in past week
↑ 65 in past week
Summit County Measles Activity:
No measles cases have been reported in Summit County and there have been no recent wastewater detections. Around Thanksgiving we had measles detections in the wastewater at two locations, but neither site had consecutive detections of measles or detections in the most recent samples on 12/18. Wastewater detection is a valuable early-warning tool—it does not indicate how many people are sick, but signals if measles has been present.
With the ski season (finally) here, it's important to make healthy choices for yourself and your family. If you aren't feeling well, stay home. If you suspect that you or someone in your family may have measles, please stay home and call your doctor or call before you go to urgent care.
Since the middle of 2025 Utah has reported a total of 176 confirmed measles cases. In this first week of 2026, there were 20 new cases. The majority of cases (and new cases) are being reported in the Southwest Health District (Washington, Iron, Kane, Beaver, and Garfield counties) as part of an ongoing outbreak along the Arizona boarder. Southwest has a total of 129 confirmed cases of measles.
Of the 176 cases in Utah, 60% are among children under 18, and 40% among adults. 17 cases have needed to be hospitalized, and 92% of cases have been unvaccinated.
Summit County public exposures will be listed here (there are currently no public exposures in Summit County). For exposures in other parts of Utah please check the state’s website for the most up-to-date exposure locations There are current exposures listed in Utah in these areas: • St. George • Salt Lake City • Sandy • Kanab
If you were at a location during the times listed, monitor yourself for measles-like symptoms. Use the link below to complete a short survey for guidance on your potential risk and recommended next steps. The survey is available in both English and Spanish. UDHHS measles exposure survey
Measles Activity in Neighboring States:
• Arizona has a total of 214 reported cases (+9 cases in last week). There is a current outbreak occurring along the Arizona Utah border in Mohave County. • Colorado has a total of 36 cases, with 0 new cases reported in the past week. • Wyoming has a total of 15 cases, with 0 new cases reported in past week. • Idaho has 14 total cases, with 1 new case reported in past week. • New Mexico has 100 total reported cases, and has stopped reporting cases since their outbreak was declared over. • Nevada has 1 reported case, with 0 new cases reported in past week.
National Measles Update:
Overall, 45 states have reported measles cases in 2025, with a the total of 2,144 cases. South Carolina and Utah are currently experiencing large outbreaks, each reporting ≥20 cases for the first week of 2026.
Mexico is up to 5,741 cases and Canada has reported 5,393 cases this year. This puts the estimated total for North America at 13,278 measles cases, with the U.S. making up ~16% of those cases.
As we head into ski season, it’s the perfect time to make sure you and your family are fully vaccinated against measles & your seasonal respiratory viruses (Flu & Covid). Being fully vaccinated against measles means receiving two doses of the MMR vaccine. And as always, please keep sick children home from school—and sick adults home from work. Staying home when you’re ill helps protect everyone’s health, whether it’s from measles, the common cold, flu, Covid, or norovirus.
Measles Symptoms: Measles symptoms typically appear 7–14 days after exposure, so if you were in the area during that window and begin to feel sick, please call your healthcare provider, or give us a call at 435-333-1500. People who have a high fever (101°F (39°C) or higher) and a cough, runny nose, or red eyes may have early stages of measles. A rash will usually appear after 4 days of fever. If you do develop symptoms you should stay away from other people and call your healthcare provider. Call first before you go to a clinic or hospital to prevent other people from exposure.
MMR Vaccine Information: The most effective way to prevent measles is through vaccination. Receiving two doses of the MMR/MMRV (measles, mumps, rubella, /varicella (chickenpox)) vaccine provides strong protection against the virus. One dose of MMR or MMRV vaccine is 93% effective against measles, and two doses are 97% effective. It takes the body about 14 days after receiving the vaccine to develop immunity to measles. If you are unsure about your vaccination status, you can access your UTAH records here
If you’ve been unsure or on the fence about the MMR vaccine, now is a great time to revisit that conversation. Vaccines save lives.
To schedule a time to get a MMR shot, please call any of our health department locations:
| Park City: | 435-333-1500 |
| Kamas: | 435-783-3161 |
| Coalville: | 435-336-3234 |
There’s a lot of information circulating—some accurate, some not. If you have questions about something you’ve seen online or want to better understand the validity of a report, please don’t hesitate to reach out. I’m more than happy to talk through any concerns you may have.
For local updates, please check the Utah Department of Health’s Measles Response Page
In-between updates you can check out Johns Hopkins University’s measles tracking dashboard for national updates: • Case counts by state • An interactive map and searchable data table • View it here: Johns Hopkins Measles Dashboard
Measles Resources: Johns Hopkins Measles Dashboard | CDC | Utah | Summit County
Norovirus (“Stomach Flu”)
Norovirus is commonly referred to as the “stomach flu” even though it
is not related to the flu at all. Norovirus season is typically between
November and April. Norovirus is very contagious and causes vomiting and
diarrhea. Anyone can get it, most people get better within 1 to 3 days,
but you can still spread the virus for a few days after. Norovirus
spreads through the fecal-oral route, which can be as simple as touching
a contaminated surface and then touching your mouth or eating
contaminated foods. The best thing to do to protect yourself and others
is to WASH YOUR HANDS!
Welcome to the Summit County Health Department’s Respiratory Disease Dashboard.
This dashboard provides up-to-date information on influenza (flu), RSV, COVID-19, and occasionally other circulating illnesses in Summit County. During the active seasonal respiratory season (October–April), data are updated weekly each Wednesday to reflect the most current trends in our community.
Summit County tracks these illnesses through laboratory testing reports and state surveillance systems to monitor local activity and identify emerging patterns. The goal is to help residents, schools, and healthcare partners make informed decisions to protect themselves, their families, and our community.
Each week, I write Between 2 Graphs, a short, easy-to-read weekly blog summarizing what’s happening with respiratory diseases in Summit County, Utah, and across the U.S. I also highlight any other circulating illnesses of concern, such as measles. Weekly updates include graphs for flu, RSV, COVID-19, and norovirus, as well as wastewater data for COVID-19 and updated measles case counts related to the 2025 measles outbreak.
Thank you for staying informed and helping keep Summit County healthy this season.
This dashboard was last updated on Thursday, January 08, 2026.
*I know the bottom of this Dashboard says that it has not been updated for 12 months, please ignore that. The accurate date of last update is listed above.
Hello! My name is Nancy Porter, I am the Epidemiologist for the Summit County Health Department. I lead efforts in disease surveillance, outbreak investigation, and public health research. I moved from Maryland to Summit County three years ago to be apart of the amazing Summit County Health team. I went to Penn State University for my bachelors and masters degree, focusing on public health sciences, and then I completed my doctoral course work in epidemiology at the University of South Carolina, focusing on cancer and genetic epidemiology. Other than loving data, I love adventuring outside, crafting, and plants.
If you have questions or comments about the respiratory disease dashboard, please email me at nporter@summitcountyutah.gov
