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Dog Disease Outbreaks in Colorado

ParvoMaps is tracking 9 confirmed reports in Colorado, 2 of them still active. Every report links to its source. See them plotted on the live map.

9
Reports on record
2
Currently active
0
Last 7 days
0
Last 30 days

What's been reported in Colorado

6
2
1

Where in the state

2
1
1
1
1
1
1
1

Recent reports

Blue-green Algae
Historical · Jul 7, 2026
Windsor, Weld County
Lake Windsor
Source ↗
Blue-green Algae
Historical · Jul 1, 2026
Oak Creek, Routt County
Stagecoach Reservoir
Source ↗
Blue-green Algae
Historical · Jun 30, 2026
Sterling, Logan County
North Sterling Reservoir
Source ↗
Blue-green Algae
Historical · Jun 30, 2026
Westcliffe, Custer County
Deweese Reservoir (bloom producing toxins)
Source ↗
Blue-green Algae
Historical · Jun 29, 2026
Orchard, Morgan County
Jackson Reservoir
Source ↗
Blue-green Algae
Historical · Jun 24, 2026
Brighton, Adams County
Barr Lake
Source ↗
Rabies · in wildlife
Active · Apr 14, 2026
Deer Trail, Arapahoe County
Rabid skunk on private property, first Arapahoe County case of 2026
Source ↗
Rabies · in wildlife
Historical · Feb 18, 2026
Arvada, Jefferson County
Rabid skunk in the Oak Crest neighborhood, first animal rabies case in Colorado in 2026
Source ↗
Parvovirus
Active · Nov 20, 2025
Northglenn, Adams County
Source ↗

Common questions

Is there a dog disease outbreak in Colorado right now?
ParvoMaps is currently tracking 2 active reports in Colorado, most commonly blue-green algae. Reports stay marked active for a set window per disease, then move to historical.
What dog diseases have been reported in Colorado?
Reports in Colorado cover blue-green algae, rabies, parvovirus, drawn from news coverage, health department notices and community reports.
How do I know if a report near me is still current?
Every report carries the date it happened and a link to its source. Each disease has its own active window — blue-green algae advisories expire in 30 days, parvo reports stay active for a year — so a pin marked active is one still worth acting on.

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