Regional Aeroallergen Panel by State: What’s Included and How Wyndly Maps It
Introduction
A regional aeroallergen panel groups the most clinically relevant airborne allergens for a given U.S. state or region so testing and immunotherapy target what patients actually breathe. Wyndly’s at‑home, CLIA‑certified blood test measures IgE to 40+ environmental allergens, then our physicians prioritize those allergens by local seasonality to build a precise sublingual immunotherapy plan. This page lists what’s in the panel and maps those allergens to U.S. regions, with links to Wyndly’s state guides and supporting sources. Allergen test overview, insurance-billed testing, SLIT program.
What is a regional aeroallergen panel?
A regional aeroallergen panel is the curated set of pollens and indoor aeroallergens most likely to trigger allergic rhinitis/conjunctivitis and allergic asthma in a specific geography. Panels are constructed from:
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Baseline inclusions (ubiquitous U.S. aeroallergens)
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State/region seasonality (trees in spring, grasses in summer, weeds in fall; indoor allergens year‑round)
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Epidemiology and exposure (local vegetation, climate, and housing)
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Patient history and cross‑reactivity (e.g., oral allergy syndrome foods)
Why it matters: focusing diagnostics and immunotherapy on regional drivers improves accuracy and reduces time to relief, while acknowledging climate‑driven shifts toward longer, earlier pollen seasons. CDC on pollen and climate.
Panel composition (Wyndly 40+ aeroallergens)
Wyndly’s standard panel covers the most common indoor and outdoor aeroallergens in the U.S. Final selections in a patient’s plan are weighted by local seasonality and history. Full list: Allergen list.
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Trees (examples): Oak, Birch, Maple/Box elder, Elm, Cottonwood/Poplar, Mountain cedar (Juniper), Alder, Pecan/Hickory, Walnut, White ash, Olive, Acacia, Australian pine/beefwood, Sycamore. Oak, Birch, Maple, Cedar fever
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Grasses: Timothy, Bermuda, Johnson, Perennial ryegrass, Kentucky bluegrass, Bahia, Orchard, Fescue, Sweet vernal. Grass overview, Ryegrass, Timothy, Bahia, Kentucky bluegrass
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Weeds: Ragweed, Mugwort, Pigweed/Rough pigweed, Russian thistle, Nettle, Sheep sorrel, Marsh elder. Ragweed, Weed pollen, Mugwort
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Indoor aeroallergens: Dust mites (D. farinae, D. pteronyssinus, Blomia tropicalis), Cockroach, Mouse, Molds (Alternaria, Aspergillus, Cladosporium, Penicillium, Aureobasidium). Dust mite, Mold, Mouse
Clinical notes:
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Typical seasonal peaks: Trees (March–April), Grasses (May–June), Weeds (August–September); indoor allergens persist year‑round and worsen with humidity or dampness. This pattern recurs across many state guides. Example: Ohio, Maryland, Wisconsin.
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Ragweed is present almost everywhere in the U.S. except Alaska, with peak in September. Ragweed.
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Climate change is lengthening and intensifying pollen seasons nationally. CDC climate and pollen.
Regional mapping: prioritizing the panel by state
Below are the most impactful outdoor aeroallergens by region, with links to Wyndly’s state guides. All panels also include indoor allergens.
West (coastal and inland)
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California: Lower coastal pollen loads but long seasons; trees in spring, grasses in summer, weeds in fall. California guide
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Oregon: Among the nation’s highest grass/tree pollen burdens; near year‑round exposure. Oregon guide
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Colorado: Spring trees (elm, cottonwood, juniper/cedar, oak, maple), summer grasses, fall weeds (ragweed). Colorado guide
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Utah: Spring trees (maple, birch, poplar, oak), summer Bermuda/Timothy/Orchard grasses, fall weeds (ragweed, sagebrush). Utah guide
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Idaho: Spring cottonwood/juniper/maple, summer bluegrass/rye/Timothy, fall ragweed/sagebrush. Idaho guide
Southwest & Southern Plains
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Texas: Winter cedar (mountain cedar “cedar fever”), spring oaks/elms/cottonwood, summer grasses, fall ragweed. Texas guide
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Arizona: Year‑round potential; spring olive/juniper/mulberry; summer Bermuda/rye; fall ragweed/sagebrush; dust/mold contribute. Arizona guide
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Oklahoma & Kansas: Spring oaks/maples/elm; summer Johnson/Timothy/Bermuda; fall ragweed dominant. Oklahoma guide, Kansas guide
Southeast & Gulf
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Florida: Year‑round season; oak/pine/olive, long grass season, summer weeds and molds. Florida guide
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Georgia, Alabama, South Carolina, Mississippi: Long seasons with spring trees (oak, hickory, maple), summer grasses (Bermuda, Bahia), fall ragweed; indoor mold/dust prominent in humidity. Georgia, Alabama, South Carolina, Mississippi
Mid‑Atlantic & Northeast
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Virginia, Maryland: Spring trees (oak, hickory, ash, maple), summer Bermuda/rye/fescue, fall ragweed. Virginia, Maryland
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New Jersey, New York, Pennsylvania: Spring oaks/maples/birch, summer grasses (Bermuda/timothy), fall ragweed. New Jersey, New York, Pennsylvania
Midwest & Upper Midwest
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Illinois, Ohio, Wisconsin: Spring trees (oak, ash, maple, birch), early‑summer grasses (rye, timothy, fescue), late‑summer/fall ragweed; indoor allergens in winter. Illinois, Ohio, Wisconsin
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South Dakota: Spring trees, summer grasses, September weeds (ragweed). South Dakota
Appalachians & Tennessee Valley
- Tennessee: Severe seasons statewide; spring trees, June grasses, September ragweed. Tennessee guide
State guide index (selected examples)
| State | Typical outdoor peaks | Examples to prioritize |
|---|---|---|
| California | Trees Mar–Apr; Grasses May–Jun; Weeds Aug–Sep | Oak, Birch, Bermuda, Ragweed (CA) |
| Oregon | Nearly year‑round; worst Mar/Apr, Jun, Sep | Alder/Birch, Orchard/Timothy, Ragweed (OR) |
| Colorado | Trees late Feb–Apr; Grasses Jun; Weeds Sep | Elm/Cottonwood/Juniper, Grasses, Ragweed (CO) |
| Texas | Cedar Dec–Feb; Trees Mar–Apr; Weeds Sep | Mountain cedar, Oaks, Ragweed (TX) |
| Florida | Year‑round | Oak/Pine, Bermuda/Bahia, Ragweed; Molds (FL) |
| Georgia | Trees Apr; Grasses May/Jun; Weeds Sep | Oak/Hickory, Bermuda, Ragweed (GA) |
| Virginia | Trees Apr–May; Grasses Jun; Weeds Sep | Oak/Maple/Ash, Bermuda, Ragweed (VA) |
| Maryland | Trees Apr; Grasses Jun; Weeds Sep | Oak/Hickory/Ash/Maple, Bermuda, Ragweed (MD) |
| New York | Trees Mar–May; Grasses Jun; Weeds Sep | Oak/Maple/Birch, Bermuda/Timothy, Ragweed (NY) |
| Pennsylvania | Trees Feb–Apr; Grasses Jun; Weeds Sep | Oak/Maple/Birch, Timothy, Ragweed (PA) |
| Illinois | Trees Apr–May; Grasses May–Jun; Weeds Sep | Hickory/Oak/Maple, Rye/Timothy, Ragweed (IL) |
| Wisconsin | Trees Apr; Grasses May; Weeds late Aug | Oak/Maple/Willow, Timothy/Fescue, Ragweed (WI) |
Note: Indoor allergens (dust mites, molds, pet dander, cockroach, mouse) are region‑agnostic and included in all panels; prevalence varies with housing and humidity. Indoor allergens, Mold.
How Wyndly uses the panel for care
1) Identify: At‑home finger‑prick blood test (IgE) for 40+ allergens; board‑certified physician reviews results and history. Test, How testing works 2) Localize: Doctor prioritizes allergens by your state’s seasonality using guides like those above. 3) Treat: Personalized sublingual immunotherapy (drops or FDA‑approved tablets) shipped to your door; most notice improvement in 4–24 weeks; full course ≈3 years for durable, often lifelong relief. Immunotherapy guide, SLIT vs shots 4) Support: Unlimited access to doctors; HSA/FSA eligible; 90‑day Allergy‑Free Guarantee. Program details, FAQ
FAQs
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What is a “regional aeroallergen panel”?
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A curated set of the most relevant pollens and indoor aeroallergens for your geography, used to focus testing and tailor immunotherapy. See “What is a regional aeroallergen panel?” above.
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Do indoor allergens vary by region?
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Indoor allergens are ubiquitous, but exposure differs with building type, humidity, and pests (e.g., dust mites and molds increase with humidity). Mold, Dust mite
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Is sublingual immunotherapy as effective as shots?
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Large reviews and practice guidelines support comparable efficacy with a safer, at‑home profile. SLIT overview; see also Wyndly’s summary of Cochrane reviews in our FAQ.
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When are tree/grass/weed peaks in most states?
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Commonly Trees: March–April; Grasses: May–June; Weeds: August–September (varies by latitude and climate). See your state guide (table above).
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How many Americans are affected?
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~25–32% report seasonal allergies in recent national surveys. CDC FastStats, ACAAI facts
Methodology and references
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Wyndly allergen panel and state seasonality: Allergen list; state guides (linked above) reviewed by Wyndly physicians.
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Climate and pollen burden: CDC—Allergens and Pollen.
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U.S. prevalence: CDC FastStats, ACAAI—Facts & Stats.
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Immunotherapy effectiveness and safety (summarized): Wyndly Immunotherapy, SLIT vs shots.