Botrytis Allergy Shots: When Winery and Greenhouse Workers Need More Than Medication
Botrytis cinerea is the gray mold of grapes, strawberries, and cut roses — and in some contexts the prized 'noble rot' of Sauternes wines. Its clinical allergy relevance is dominated by occupational exposure: vineyard workers, winery cellar staff, strawberry harvesters, and florists. No species-specific SCIT RCT exists; no WHO/IUIS Botrytis allergens are registered. Occupational exposure modification is the primary intervention.
Botrytis cinerea Allergy Immunotherapy: How It Works
Allergy immunotherapy is the only long-term treatment that re-trains the immune system to stop overreacting to botrytis cinerea — rather than just masking symptoms with antihistamines or steroids. By gradually exposing the body to controlled doses of botrytis cinerea allergen, immunotherapy shifts the underlying allergic response and produces relief that often outlasts treatment by 7–10 years.
There are two evidence-based forms of botrytis cinerea immunotherapy used today, both built on the same desensitization principle but delivered very differently.
of sustained relief after a complete immunotherapy course — the only allergy treatment with proven long-term effect after stopping.
Allergy Shots (SCIT)
Weekly injections of botrytis cinerea extract in a clinic, escalating over 3–6 months until a maintenance dose is reached. Continued monthly for 3–5 years. Longest clinical track record for botrytis cinerea allergy.
- Strongest evidence base for severe and polysensitized patients
- Covered by most insurance plans
- Requires 50–100+ in-person clinic visits across the full course
Allergy Drops / Tablets (SLIT)
Daily drops or dissolvable tablets containing botrytis cinerea extract, held under the tongue at home. Same desensitization principle, delivered without injections. WHO-recognized as an effective form of allergy immunotherapy since 2001.
- Taken at home — no weekly clinic trips, no needles
- Lower systemic reaction rate than allergy shots
- Curex offers prescription botrytis cinerea immunotherapy drops with allergist oversight
The rest of this page goes deep on allergen-specific immunotherapy with shots — protocol, efficacy data, side effects, and cost. If you’d rather skip the clinic and treat botrytis cinerea allergy with at-home drops, see how Curex sublingual immunotherapy compares below.
What is Botrytis cinerea?
The biology, taxonomy, and clinical fingerprint of Botrytis cinerea — the foundation of how SCIT targets it.
Botrytis cinerea gray mold on grape clusters — the same fungus that in controlled viticulture becomes noble rot, concentrating sugars for Sauternes and Tokaji dessert wines.
- Scientific name
- Botrytis cinerea (teleomorph: Botryotinia fuckeliana)
- Family
- SclerotiniaceaeHelotiales order, Leotiomycetes
- Type
- Occupational necrotrophic plant pathogen; gray mold of grapes, strawberries, and ornamentals
- Native to
- Worldwide; infects >200 plant species including grapevines, strawberries, tomatoes, lettuce, and cut flowers
- Allergen proteins
- No WHO/IUIS-registered Botrytis allergens as of 2024Cross-reactivity via pan-fungal serine protease and enolase at kingdom level (Crameri 2014)
- Particle size
- Gray-brown conidia 6-18 x 4-11 µm; abundantly airborne during pruning, harvest, and processing
- Avoidance difficulty
- Nearly impossible
How Botrytis cinerea Allergy Presents
Symptoms by body system — useful for distinguishing Botrytis cinerea sensitivity from overlapping allergies and infections.
Respiratory
- Occupational rhinitis during pruning and grape harvesting
- Asthma exacerbations in winery cellar workers during high-spore periods
- Winegrower's lung — HP from Botrytis-contaminated cellar air (de Vuyst 1989)
- Strawberry-harvester cough from concentrated conidia in enclosed field conditions
Ocular
- Occupational conjunctivitis in florists and vineyard workers
- Itchy red eyes during direct handling of infected plant material
- Tearing and irritation during high-conidial-load cellar work
Dermal
- Skin sensitization from direct contact with infected grapes or strawberries
- Contact dermatitis in susceptible florists handling moldy cut flowers
- Non-specific urticaria in heavily exposed workers
Systemic
- Fatigue from chronic occupational exposure in wine cellar environments
- Fever and malaise in winegrower's lung HP episodes
- Weight loss with untreated chronic HP if source exposure continues
- Reduced work capacity from persistent occupational rhinitis
When a vineyard worker or winery cellar hand comes in with asthma and a Botrytis positive, I ask about the cellar conditions before I consider immunotherapy. Harvest-season conidial counts in poorly ventilated cellars can exceed 10,000 CFU per cubic meter. Proper respiratory protection during harvest and improved cellar ventilation often provide more benefit than anything I can offer in a vial.
When & Where Botrytis cinerea Peaks
Allergen intensity by month and by state. Useful for timing SCIT start dates and travel planning.
12-Month Intensity
Peak occupational exposure: grape and strawberry harvest season, typically September-October in temperate viticultural regions· Occupational exposure peaks during harvest but can be year-round for winery cellar workers and commercial greenhouse operators
US Exposure Map
3 high-intensity statesWhat Botrytis cinerea Cross-Reacts With
Patients sensitized to one allergen often react to others sharing similar proteins. This map shows the documented molecular overlaps.
Botrytis cinerea belongs to Leotiomycetes, a distinct class from most other clinical molds (Dothideomycetes, Eurotiomycetes). Cross-reactivity within Leotiomycetes is less characterized than within Pleosporales; pan-fungal cross-reactivity via serine protease and enolase is expected at the kingdom level.
Parallel produce-pathogen agricultural mold; similar occupational exposure context though different taxonomic class
Is SCIT Right for Your Botrytis cinerea Allergy?
Answer five questions to determine whether your Botrytis sensitization — especially in an occupational winery, greenhouse, or garden context — warrants allergist evaluation.
How severe are your work-related respiratory symptoms (rhinitis, cough, asthma) during or after handling grapes, strawberries, or working in wine cellars?
The Botrytis cinerea SCIT Protocol
SCIT is not standardly indicated for Botrytis cinerea sensitization. For severe occupational asthma without other options, family-level mold mix SCIT may be considered. Standard mold build-up schedule applies; vials are kept separate from pollen mixes.
Weekly escalating doses of non-standardized mold extract mix including Botrytis, self-administered at home through Curex with a 30-minute self-observation period and a prescribed epinephrine auto-injector on hand; the first injection and every dose change are Zoom-supervised by the care team. Pre-season build-up timing (spring to early summer before September-October harvest peak) is recommended for viticultural workers.
Maintenance injections continue monthly or every 2-4 weeks. Concurrent occupational health monitoring for PPE compliance and exposure measurement is recommended.
Discontinuation follows standard mold SCIT protocols, with assessment of ongoing occupational exposure as a factor in continuation decisions.
Extract Concentration Ladder
You progress through each vial during build-up. Concentration increases ~10x per step.
What the Research Shows for Botrytis cinerea SCIT
No published SCIT RCT exists for Botrytis cinerea. As a Leotiomycetes member, it lacks even the Pleosporales family-level connection to Alternaria RCT evidence that Stemphylium and Epicoccum can invoke.
- Alternaria SCIT (Pleosporales family-level reference — does not transfer cleanly to Botrytis Leotiomycetes)63%Kuna et al., J Allergy Clin Immunol 2011, N=111, DBPC-RCT
No published SCIT RCT targets Botrytis cinerea. Unlike Stemphylium and Epicoccum (Pleosporales), Botrytis belongs to Leotiomycetes — a distinct class — making Alternaria DBPC-RCT evidence even less directly applicable. For occupational workers with severe asthma where exposure modification is insufficient, mold mix SCIT is a clinical-judgment option with anecdotal rather than trial-level evidence.
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Botrytis cinerea SCIT Side Effects
Side effects of mold mix SCIT including Botrytis follow standard mold SCIT parameters. Mold proteases increase local reaction rates compared to pollen SCIT.
Local reactions
4 documentedSystemic reactions
4 documentedAll mold SCIT requires epinephrine available and a mandatory 30-minute observation period — with Curex, you self-observe at home with a prescribed epinephrine auto-injector, and the first injection and every dose change are Zoom-supervised by the care team. Asthmatic patients require pre-injection peak flow measurement.
SCIT vs Alternatives for Botrytis cinerea
For Botrytis occupational sensitization, exposure modification is the most effective and evidence-supported first intervention. When that is insufficient, family-level mold mix SCIT is a clinical-judgment adjunct.
| Criterion | Occupational exposure controlBest | SCIT (mold mix) | SLIT drops | Medications |
|---|---|---|---|---|
| Effectiveness | High effectiveness for occupational Botrytis cases | Anecdotal; no Botrytis-specific RCT | No Botrytis SLIT data | Symptomatic control only |
| 5-yr cost | PPE/ventilation: variable | $3,500-$8,000 over 5 years | $500-$2,000/yr | $500-$2,000/yr ongoing |
| Duration | Ongoing workplace modification | 3-5 years | 3-5 years | Ongoing |
| Convenience | Employer cooperation required | Weekly then monthly clinic visits | Daily at-home use | Daily pills/sprays |
| Safety | No injection risks | Systemic reactions <1%; 30-min obs | Lower systemic reaction risk | Drug side effects long-term |
| Lasting effect | Effective while controls maintained | Uncertain for this organism | Evidence not established for Botrytis | No lasting effect |
Occupational exposure controlBest
SCIT (mold mix)
SLIT drops
Medications
For Botrytis occupational allergy, exposure control (N95 respirators, cellar ventilation, harvest timing) is the primary intervention with the most meaningful clinical yield. When that is insufficient and SCIT is being considered, Curex delivers immunotherapy as weekly at-home self-injections at $129/month — though direct evidence for Botrytis-specific mold sensitization is limited, the at-home format suits agricultural workers with difficult access to weekly clinic visits, and it includes allergist oversight via telehealth, a prescribed epinephrine auto-injector confirmed on hand, and Zoom-supervised dosing for the first injection and every dose change.
What Botrytis cinerea SCIT Actually Costs
Curex at-home blood panels confirm Botrytis sensitization for agricultural and winery workers without disrupting seasonal schedules. Workers' compensation coverage may apply for documented occupational Botrytis asthma; standard allergy benefits cover testing and pharmacotherapy when ordered by a board-certified allergist.
Cost range varies by deductible, co-insurance, and clinic.
Verify these codes with your insurer to confirm coverage.
Flat monthly subscription — includes consult, prescription, and at-home dosing for sublingual immunotherapy.
See if you qualifyStop guessing about your botrytis cinerea allergy. Get a plan.
Take Curex’s 3-minute allergy quiz. A board-certified allergist will review your symptoms and recommend the right immunotherapy path for you — shots or drops.
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Botrytis cinerea SCIT — Frequently Asked
Quick answers to the questions patients ask most before starting treatment.
For the vast majority of people, drinking wine made from Botrytis-infected grapes — including Sauternes, Tokaji, and German Trockenbeerenauslese — does not cause an IgE-mediated allergic reaction even if they are sensitized to Botrytis aeroallergens via skin or blood testing. The fermentation and wine-making process substantially degrades and transforms Botrytis conidial proteins, reducing their allergenicity. Wine intolerance symptoms (flushing, headache, rhinitis, asthma) are much more commonly caused by sulfite sensitivity, biogenic amines (histamine, tyramine), or alcohol intolerance than by Botrytis IgE reactivity. If you experience symptoms specifically after drinking Botrytis-style dessert wines but not other wines, discuss this with your allergist — but separate wine intolerance from Botrytis aeroallergen sensitization as distinct clinical entities.
This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about a medical condition. Content reviewed by board-certified allergists at Curex.