Indoor Mold Exposure and Asthma Risk
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Indoor Mold Exposure and Asthma Risk

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Indoor Mold Exposure Can Post Health Risk To Asthma Patients Interview with:
Dr. Richard Sharpe PhD
Study – Health and Housing
European Centre for Environment and Human Health
University of Exeter Medical school
Knowledge Spa, Royal Cornwall Hospital
Truro, Cornwall,

Medical Research: What are the main findings of the study?
Dr. Sharpe: By systematically reviewing the findings from 17 studies across 8 different countries, we’ve found that increased levels of the fungal species Penicillium, Aspergillus, and Cladosporium can pose a significant health risk to people with
. The presence of these fungi in the home can worsen symptoms in both children and adults.Recent indoor air testing shows an increase in these mold's and the airborne spores they produce which are inhaled and ingested by the occupants.
Medical Research: Were any of the findings unexpected?

Dr. Sharpe: Dampness and fungal contamination in the home has been consistently shown to increase the risk of asthma and the severity of its symptoms. Fungi are ubiquitous in indoor and outdoor environments, and most studies have focused on visible fungi and moldy odors or on identifying fungi to the genera, but not on the type of species. This is important to consider because there are many different allergenic fungal species, but it is not clear how the diversity and indoor concentrations are influenced by occupant behaviors, the built and outdoor environment. Majority of the evidence reviewed focuses on the exacerbation of asthma symptoms, and few assess their role in the development of asthma. So far Aspergillus and Penicillium species have already been linked to an increase in the risk of asthma development in children, but we know little about the effects of the other species we considered.
HVAC contamination has become one of the main contributors of these molds, as most I.A.Q. personnel have found the proper maintenance and sanitizing of the units have not been done and people are unaware to the environmental side of the HVAC's performance. If infected with these molds the units are blowing out toxic spores into the indoors; the "conditioned air" we now breathe if found with these spores is just cycling the air throughout the entire indoor air quality.
Medical Research: What should clinicians and patients take away from your report?
Dr. Sharpe:Characterized by typically high humidity, homes with poor heating and ventilation can be a haven for house dust mites and mold. Dampness is one of the major factors affecting the growth of mold inside homes – a problem which has been on the rise as aging houses are sealed and retrofitted with new energy efficient technology. We currently know very little about how people’s living habits can contribute to indoor air quality, and ultimately affect their health. This study highlights the need for homes to have adequate heating, ventilation and home maintenance – all factors that will help to reduce the presence of mold and its effects on asthma symptoms. Again have I.A.Q. personnel determine the climate in which you live and how to adjust the dew points, temperature inversions, and humidity's.
Medical Research: What recommendations do you have for future research as a result of this study?
Dr. Sharpe: We recommend that future studies should consider the adoption of a multidisciplinary approach using both molecular and epidemiologic tools to accurately estimate the extent and timing of exposures and reliably assess their potential health effects.
Richard A. Sharpe, Nick Bearman, Christopher R. Thornton, Kerryn Husk, Nicholas J. Osborne. Indoor fungal diversity and asthma: A meta-analysis and systematic review of risk factors. Journal of Allergy and Clinical Immunology, 2014; DOI: 10.1016/j.jaci.2014.07.002

Physician in practice over 30 years.Editor of All interviews conducted exclusively for by Marie Benz, MD.
This entry was posted in Allergies, Author Interviews by Marie Benz MD FAAD. Bookmark the permalink.
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3 Comments to Indoor Mold Exposure and Asthma Risk:

Comments RSS on Tuesday, April 05, 2016 9:08 AM
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Beverly B. Gregory on Friday, April 15, 2016 5:26 AM
For best and healthy indoor environment in homes the quality air consultant is the best. They have a best solution to give best environment for provide the asthma risk.
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order essay paper on Saturday, September 09, 2017 8:03 PM
Many people have asthma issues now a days my grandfather also suffer from this . I search many doctor but cant find one. After reading your blog I came to know that it is controlable illness .It is very useful information I liked it and goig to share with others.
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