Allergies

The term allergy encompasses a wide range of conditions; it is not a disease in itself. The term allergy – medically termed hypersensitivity, signifies an exaggerated reaction to foreign substances.

Old Friends Hypothesis

The "old friends" hypothesis was proposed by Graham Rook in 2003 as an alternative to or refinement of the hygiene hypothesis, originally brought forward by Strachan in 1989 as an explanation for the rise in allergic disease.

Latex Allergy

Sulfite Allergy

Cobalt Chloride Allergy

What's Driving the Recent Rise in Food Allergies?

What is Lactose Intolerance?

Are DIY Allergy Tests Reliable?

Different Types of Allergies

Diagnosis of Allergies

Breastfeeding and Allergies

Tree Nut Allergy

Mustard Allergy

See more featured articles »

What is Peanut Allergy?

What is Milk Allergy?

What is Food Protein-Induced Enterocolitis Syndrome (FPIES)?

Gluten Intolerance / Allergy

Wheat Allergy

Oral Allergy Syndrome (OAS)

Perfume Allergy

Milk Allergy

Garlic Allergy

Balsam of Peru Allergy

Penicillin Allergy

How to Prevent Mold Allergies

Cockroach Allergy

Allergies and Genetics

How Does Milk Allergy Differ from Lactose Intolerance?

Can Food Allergies Be Genetic?

Does Allergy Immunotherapy Work?

Treatment and Prevention of Allergies

Soy Allergy

Types of Eye Allergy

Seasonal Allergy

Causes of Allergies

Allergies in Children

Long Term Effects of Taking Allergy Medications

Gold (Gold Sodium Thiosulfate) Allergy

Pediatric Allergies

What is Anaphylaxis?

Formaldehyde Allergy

Epidemiology of Allergies

Allergic Reaction to Skin Products

Cow’s Milk Allergy Management

Allergies and the Hygiene Hypothesis

What is the Microbial Diversity Hypothesis?

Treatment and Prevention of Allergies

Meat Allergy

Steps to Reduce Home Allergy

What are Pet Allergies?

Type of Pollen Allergies

Can you Treat a Food Allergy by Altering the Gut Microbiome?

Common Allergens in the Workplace and How to Avoid Them

Autism Spectrum Disorder & Allergies

Research on Allergies

What is Allergic Contact Dermatitis?

Am I Allergic to Ragweed?

Lupin Allergy

Tartrazine Allergy

What are Allergies?

Sesame Seed Allergy

Meat Allergy After a Tick Bite

Chromium Allergy

Food Allergy and Intolerance Research

Nickel Allergy

Allergic Reactions to Pharmaceutical Drugs

Allergy Patch Testing

Fruit Allergies

Types of Allergy Tests

Celery Allergy

What are Recombinant Allergens?

What is Dust Mite Allergy?

Latest Allergies News and Research

New studies shine light on oral immunotherapy and oral food challenges in allergic children

Two new studies being presented at the American College of Allergy, Asthma and Immunology (ACAAI) Annual Scientific Meeting in Orlando shine a spotlight on oral immunotherapy and oral food challenges (OFCs) in children, showing that both procedures are safe for young patients and can be life-changing for families navigating food allergies.

6 Nov 2025

COVID-19 vaccination may have broader health benefits for children with atopic dermatitis

Children with atopic dermatitis (AD), commonly known as eczema, may experience fewer infections and allergic complications if they receive the COVID-19 vaccine, according to new research being presented at the 2025 American College of Allergy, Asthma and Immunology (ACAAI) Annual Scientific Meeting in Orlando.

6 Nov 2025

Long-term study shows peanut patch treatment builds tolerance in toddlers

New research presented at the 2025 Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI) offers encouraging news for parents of young children with peanut allergies.

6 Nov 2025

Veterans deployed to Iraq and Afghanistan face higher risk of chronic respiratory conditions

U.S. Veterans who served in Operation Iraqi Freedom (OIF) and Operation Enduring Freedom (OEF) face an increased risk of developing several chronic respiratory conditions, according to new research presented at the 2025 Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI) in Orlando.

6 Nov 2025

Thunderstorms can trigger sharp increases in asthma-related emergency department visits

A new study finds that thunderstorms can trigger sharp increases in asthma-related emergency department (ED) visits, underscoring the importance of storm preparedness for people with asthma. The research is being presented at the 2025 Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI) in Orlando.

6 Nov 2025

Research shows reluctance among obstetricians to refer pregnant patients to allergy specialists

Many pregnant women experience allergies, asthma, or reactions to medications - conditions that can affect both mother and baby if not carefully managed. Yet new research presented at the 2025 American College of Allergy, Asthma and Immunology (ACAAI) Annual Scientific Meeting suggests a reluctance among obstetricians to refer their pregnant patients to allergy specialists, even when a referral could help improve care.

6 Nov 2025

Allergic conditions linked to higher risk of complications after surgery

Two new studies being presented at the 2025 Annual Scientific Meeting of the American College of Allergy, Asthma and Immunology (ACAAI) show that people with allergic conditions - including eczema, asthma, and hay fever - may face more problems after certain types of surgery.

6 Nov 2025

Experimental intranasal vaccine triggers broad immune response against multiple strains of H5N1

Researchers at the University of Maryland School of Medicine's Center for Vaccine Development and Global Health (CVD) reported encouraging results from an early phase clinical trial that found an experimental intranasal vaccine triggered a broad immune response against multiple strains of H5N1 "bird flu".

6 Nov 2025

NIH grant supports research on how the immune system responds to serious eye infections

New research that sheds light on how the immune system responds to serious eye infections is underway at Wayne State University, supported by a $2.3 million federal grant from the National Eye Institute of the National Institutes of Health (NIH).

3 Nov 2025

How walnuts combat inflammation and oxidative stress in the body

This review in Food Science & Nutrition synthesizes evidence showing that walnuts (Juglans regia L.) exert potent antioxidant, anti-inflammatory, apoptosis-regulatory, and immunomodulatory effects through bioactive compounds influencing mitochondrial, cytokine, and redox pathways.

3 Nov 2025

How nerve cells in the gut adapt to microbial and immune challenges

Ramnik Xavier, MD, PhD, of the Department of Molecular Biology at Massachusetts General Hospital, is the senior author of a paper published in Science, "Regional encoding of enteric nervous system responses to microbiota and type 2 inflammation."

31 Oct 2025

Study highlights high prevalence of non-coeliac gluten sensitivity lacking clear markers

Around one in ten people worldwide report gastrointestinal and other symptoms such as fatigue and headache after eating foods containing gluten or wheat despite not having a diagnosis of either coeliac disease or wheat allergy, finds a large systematic review and meta-analysis published online in Gut.

29 Oct 2025

Study reveals how eosinophils play a protective role against Candida infections

New research shows that eosinophils, immune cells usually linked to allergies, also play a protective role against Candida infections by using the CD48 receptor to recognize the fungus and release proteins that stop its growth.

27 Oct 2025

Eliminating cockroaches drastically reduces household allergens and endotoxins

Researchers at North Carolina State University have shown a link between the size of cockroach home infestations and the levels of both allergens and endotoxins in those homes, with lowering roach infestation numbers through pest control triggering significant declines in the levels of allergens and endotoxins.

24 Oct 2025

New BRIGHT Center aims to build resilience after trauma

The Medical University of South Carolina has been awarded more than $11 million by the National Institute of General Medical Sciences over five years to establish a Center of Biomedical Research Excellence (COBRE) to build resilience after trauma, which will be known as the South Carolina Building Resilience through Innovative Interventions to promote Growth and Health after Trauma COBRE, or the BRIGHT Center.

24 Oct 2025

Research opens new avenues for treating asthma and other inflammatory diseases

For decades, scientists have thought they understood the biochemical machinery that causes asthma-inflammation in the lungs that constricts airways and makes it hard to breathe.

23 Oct 2025

Urinary tract infections may be caused by E. coli strains in contaminated meat

A new study estimates that nearly one in five urinary tract infections in Southern California may be caused by E. coli strains transmitted through contaminated meat – and pose a hidden foodborne risk to millions of people not just in California but across the US.

23 Oct 2025

New guidelines aid parents and clinicians in pediatric tracheotomy decisions

The emotional strain on parents and other caregivers faced with deciding whether a tracheotomy is the best treatment for their child is hard to measure. The latest clinical practice guideline from the American Thoracic Society aims to give clinicians and parents/caregivers a way forward so they can navigate difficult decisions to ensure better outcomes for young patients. The guideline was published early online today, Wednesday, Oct. 22, in the American Journal of Respiratory and Critical Care Medicine.

23 Oct 2025

Can introducing peanuts early prevent allergies? Real-world data confirms it helps

Using data from over 120,000 U.S. children, this Pediatrics study found that the prevalence and risk of peanut and other IgE-mediated food allergies declined significantly after the 2015 and 2017 guidelines promoting early allergen introduction. The findings support these policies as effective public health measures to prevent food allergies in real-world settings.

22 Oct 2025

Anaphylaxis antidote underprescribed for schoolchildren in England

Less than half of schoolchildren in England who are at risk of a serious and potentially life-threatening allergic reaction (anaphylaxis) to food were prescribed the antidote-an adrenaline [epinephrine] autoinjector, or AAI for short-finds an analysis of national prescribing data, published online in the Archives of Disease in Childhood.

22 Oct 2025

Allergies

Overview

Feature Articles

What's Driving the Recent Rise in Food Allergies?

What is Lactose Intolerance?

Are DIY Allergy Tests Reliable?

Different Types of Allergies

Diagnosis of Allergies

Breastfeeding and Allergies

Tree Nut Allergy

Mustard Allergy

What is Peanut Allergy?

What is Milk Allergy?

What is Food Protein-Induced Enterocolitis Syndrome (FPIES)?

Gluten Intolerance / Allergy

Wheat Allergy

Wheat Allergy

Oral Allergy Syndrome (OAS)

Perfume Allergy

Milk Allergy

Garlic Allergy

Balsam of Peru Allergy

Penicillin Allergy

How to Prevent Mold Allergies

Cockroach Allergy

Allergies and Genetics

How Does Milk Allergy Differ from Lactose Intolerance?

Can Food Allergies Be Genetic?

Does Allergy Immunotherapy Work?

Treatment and Prevention of Allergies

Soy Allergy

Types of Eye Allergy

Seasonal Allergy

Causes of Allergies

Allergies in Children

Long Term Effects of Taking Allergy Medications

Gold (Gold Sodium Thiosulfate) Allergy

Pediatric Allergies

What is Anaphylaxis?

Formaldehyde Allergy

Epidemiology of Allergies

Allergic Reaction to Skin Products

Cow’s Milk Allergy Management

Allergies and the Hygiene Hypothesis

What is the Microbial Diversity Hypothesis?

Treatment and Prevention of Allergies

Meat Allergy

Steps to Reduce Home Allergy

What are Pet Allergies?

Type of Pollen Allergies

Can you Treat a Food Allergy by Altering the Gut Microbiome?

Common Allergens in the Workplace and How to Avoid Them

Autism Spectrum Disorder & Allergies

Research on Allergies

What is Allergic Contact Dermatitis?

Am I Allergic to Ragweed?

Lupin Allergy

Tartrazine Allergy

What are Allergies?

Sesame Seed Allergy

Meat Allergy After a Tick Bite

Chromium Allergy

Food Allergy and Intolerance Research

Nickel Allergy

Allergic Reactions to Pharmaceutical Drugs

Allergy Patch Testing

Fruit Allergies

Types of Allergy Tests

Celery Allergy

What are Recombinant Allergens?

What is Dust Mite Allergy?

Latest Allergies News and Research

Redefining control and consistency in anaerobic microbiome workflows

AI in Healthcare: How generative tools are transforming clinical practice

The future of automation: Machine learning–driven hepatocyte and organoid counting

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