ABPA is an allergic reaction in the lungs caused by the immune system over-responding to Aspergillus fungus.
New to ABPA? Start with our main guide to allergic bronchopulmonary aspergillosis (ABPA), which explains what ABPA is, how it is diagnosed and how it is treated.
This hub brings together the key topics that patients ask about most often, including IgE, eosinophils, mucus plugging, flare-ups, steroids and biologics. The articles below are specifically about ABPA; use the topic links to explore particular aspects of ABPA and related subjects.
Understanding antifungal medicines – how they work, their uses and side effects
Understanding Aspergillus allergy: A positive Aspergillus allergy test does not necessarily mean you have ABPA or a fungal infection. Our guide, What Is an Allergy? Understanding Aspergillus and the Immune System, explains IgE, fungal sensitisation and the differences between ABPA, severe asthma with fungal sensitisation (SAFS) and fungal infection.
Need specialist advice?
Many people with allergic bronchopulmonary aspergillosis (ABPA) receive care through their local respiratory, severe asthma or bronchiectasis team. If the diagnosis is uncertain, symptoms remain difficult to control or treatment is causing problems, additional specialist advice may be helpful.
Our guide to specialist aspergillosis care across the UK explains where relevant expertise is available, how referrals work and how specialist teams can support your local clinicians.
Topics in This Hub
Latest ABPA Articles
What Worries People with ABPA Most? 104 Patients Tell Us
October 12, 2026
What is an allergy?
October 9, 2026
Aspergillosis research: this week’s update
September 28, 2026
Alison: living with ABPA and adrenal insufficiency
September 28, 2026
Marcela: A 2026 follow-up: everyday life with ABPA
September 28, 2026
Marcela: living with ABPA in Portugal (2024)
September 28, 2026
Can I have ABPA without asthma?
September 18, 2026
Cystic Fibrosis and Aspergillus: When Does It Matter?
August 12, 2026
Could One Biologic Treat Nasal Polyps, Asthma and ABPA?
August 5, 2026
ABPA: Allergic Reaction or Fungal Presence in the Lungs?
April 22, 2026
Diagnosing Allergic Forms of Aspergillosis
March 13, 2026
Asthma and Aspergillosis
March 9, 2026
🧬 How Biologics Are Reshaping Our Understanding of ABPA Subtypes
February 13, 2026
🔬 Charcot–Leyden Crystals in ABPA and Asthma
February 13, 2026
Sinusitis in Patients with ABPA
January 16, 2026
Why do some people cough up long, tube-shaped pieces of mucus?
December 5, 2025
🌿 Biologics when ABPA and CPA overlap: What Patients Need to Know
November 25, 2025
🌿 ABPA: Infection, Allergy, Biologics, and What It All Means for You
November 18, 2025
Inhaled Steroids and ABPA: Do They Help or Should They Be Avoided?
November 17, 2025
ABPA or Bronchiectasis? A Detailed Guide to Understanding Flare-Ups
November 17, 2025
🧬 What IgE Is and Why It Matters
November 11, 2025
🌿 Covid-19 and ABPA / Bronchiectasis: What Patients Need to Know
September 29, 2025
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