Navigating Longer, More Complex Spring Allergy Seasons: How Labs Help Clinicians Stay Ahead

Increasing climate change is leaving various impacts on our environment, yet an often overlooked result of these rising temperatures is the effect on respiratory health and seasonal allergy sufferers. 

Warmer global temperatures, rising CO₂ levels, and even increased rainfall are directly impacting the intensity, duration, and geographic spread of allergen exposures—increasingly impacting patients with inflammatory upper airway diseases, particularly allergic rhinitis. 

As a result, clinicians are encountering patients earlier in the season with more complex and overlapping symptom profiles, underscoring the need for timely and accurate diagnostic insight.

Early spring is now an even more critical time for clinicians to address respiratory symptoms with allergic patients sooner, especially asthma patients. Clinicians can guide patients to test properly and appropriately to identify the root cause of their symptoms and tackle a now prolonged season. 

Laboratories play an essential role during this period by supporting clinicians with objective data to help differentiate allergic from nonallergic contributors before symptoms escalate.

Addressing increasing allergic triggers  

In North America, recent studies have projected pollen emissions to increase from 16 percent to 40 percent and pollen seasons to lengthen by to up to 19 days, making an already difficult time of year even harder for patients to manage. 

For example, tree pollen now begins earlier in spring, extends into summer, and increasingly overlaps with grass pollen seasons that are also starting sooner. This overlap of common geographic triggers complicates symptom evaluation, as relying solely on history or seasonal patterns may no longer provide sufficient clarity. 

Aside from just seasonal and environmental overlap during these times of year, asthma patients, in addition to allergy patients, can be severely affected by this storm. Up to 90 percent of children and 60 percent of adults with asthma have allergic triggers that can induce or exacerbate symptoms during this season.^1,2 The combination of environmental pattern changes increases both intensity and duration, worsening the burden of allergic rhinitis and asthma, and leading to more frequent flare-ups and diminished symptom control. 

Additionally, heightened allergens brought by environmental changes such as increased levels of grass, mold, or dust mites, are not the only threat to inflammation in patients. 

Temperature fluctuations, air pollution, elevated ozone levels, and particulate matter are potent nonallergic triggers that can worsen airway inflammation, and further impact any patient, especially those with preexisting respiratory disease. 

Symptom control is manageable but requires the patient to understand their known allergic triggers and identify the correct treatment with their healthcare provider before the environmental stressors interfere. 

The additional increased climate threats, further adding exposure to allergens, are making spring allergies more confusing and complicated for patients to understand their symptoms, and many of these patients may be unaware that they have more than one allergic trigger this time of year. Understanding the full range of potential allergic triggers is crucial for symptom management for the 80–90 precent of individuals with allergies that are sensitized to more than one allergen.³  

Empowering clinicians with comprehensive testing

To better arm clinicians with tools to address these symptoms with patients amid climate changes, professionals should be prepared to distinguish allergic from nonallergic drivers of respiratory symptoms. 

Laboratory testing provides critical support in this effort by offering objective insights that complement clinical evaluation. Enabling clinicians with advanced diagnostic tests in their laboratory setting can help infer a distinction that is critical for effective treatment planning. 

Specific IgE tests can equip clinicians with the capability to focus on the most prevalent allergens in the patient's geographical region. Clinical laboratories provide region-specific environmental allergen profiles that enable professionals to obtain complete allergy trigger assessments efficiently. 

Multiple national and international guidelines support this approach to help clinicians understand the individual sensitizations that may be causing upper or lower respiratory symptoms in patients. This comprehensive allergy testing allows clinicians to move beyond symptom patterns and seasonal assumptions to identify the specific sensitizations driving a patient’s disease. 

With many overlapping variables at play, access to laboratory-based specific IgE testing provides clarity for clinicians to work with patients, enabling earlier, more targeted interventions before symptoms escalate.

Taking this holistic diagnostic approach with patients ultimately supports proactive allergy management rather than reactive care, helping improve outcomes and quality of life for patients during an increasingly complex allergy season. 

References:

1. Allen-Ramey F, Schoenwetter WF, Weiss TW, Westerman D, Majid N, Markson LE. Sensitization to common allergens in adults with asthma. J Am Board Fam Pract. 2005;18(5):434-439.
2. Høst A, Halken S. Practical aspects of allergy-testing. Paediatr Respir Rev. 2003;4(4):312-318.
3. Wickman M. When allergies complicate allergies. Allergy. 2005;60 Suppl 79:14-18.