HOME >> MEDICINE >> NEWS
Recirculated airplane cabin air does not cause more colds

s," Balmes said. "We couldn't study that."

Balmes points out that the study measured the rates of colds reported by the passengers. The researchers did not culture viruses to prove the passengers actually had cold virus infections. Analysis of the results revealed that people who believed air travel increases the risk of colds did not report more post-flight colds. Females reported colds more frequently than males.

In the early 1980s, to increase fuel efficiency, aircraft manufacturers began to build ventilation systems that recirculated cabin air. Older systems had used 100 percent fresh air, compressed, humidified and cooled by the engines in an energy-demanding process. Although air recirculation had been shown to increase rates of transmission of cold viruses in army barracks, the issue had not been studied in airplanes.

The study focused on a comparison between Boeing 737s and Boeing 727s, as well as between different DC-10 models. The two Boeing craft have similar seating arrangements, cabin airflow patterns and fuselage size, but 737s recirculate about half of the cabin air, while 727s use 100 percent fresh air. Similarly some DC-10s do and some do not recirculate cabin air.

Passengers were accepted for the study only if they had not flown during the previous week, including a connecting flight on the interview day; they had no plans for additional air travel before the follow-up interview; they did not have a cold when the initial questionnaire was distributed.


'"/>

Contact: Wallace Ravven
wravven@pubaff.ucsf.edu
425-476-2557
University of California - San Francisco
23-Jul-2002


Page: 1 2

Related medicine news :

1. Uncovering tumors, hidden subs, and cracks in airplanes using math
2. UT Southwestern researchers find automated external defibrilators are safe and effective aboard airplanes
3. Aircraft cabin ventilation influences the transmission of diseases in-flight
4. Exercise-induced shortness of breath not always caused by asthma
5. U of M researcher says Viagra may cause permanent vision loss in some men
6. New estimates for the causes of child deaths worldwide
7. Study provides new estimates of the causes of child mortality worldwide
8. New guideline tackles leading cause of mother and child death
9. Decreased levels of good cholesterol in children with Progeria may cause premature heart disease
10. Study finds indoor allergen levels vary, cockroach allergens cause more asthma symptoms
11. LRRK2 gene mutation causes Parkinsons disease in several families

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Recirculated airplane cabin air does not cause more colds

(Date:10/25/2014)... October 25, 2014 Homeowners that are ... ‘gone bad’ need wonder no more. Clean Crawls ... should watch out for when it comes to insulation ... to the article released by Clean Crawls, can cause ... that any insulation that has deteriorated, become damp, or ...
(Date:10/25/2014)... Reinberg HealthDay Reporter FRIDAY, ... common cold sores -- herpes simplex -- might increase the ... In fact, being a carrier of certain antibodies to ... researchers found. "The identification of a treatable cause ... breakthrough," said lead researcher Dr. Hugo Lovheim, an associate professor ...
(Date:10/25/2014)... HealthDay Reporter FRIDAY, Oct. ... developed that spot increased risks for certain cancers, one might ... screened. But a new study suggests that, at least ... found out their genes doubled their risk of colon cancer ... get screened. "It didn,t make any difference, not at ...
(Date:10/22/2014)... Medical Solutions , the ... to announce that our co-founder and CFO, Scott ... Staffing 100 for 2014. Anderson was also named ... people in the staffing industry,” in 2013.     , ... healthcare staffing company in the U.S., was named ...
(Date:10/22/2014)... Lexington, Kentucky (PRWEB) October 22, 2014 ... an agreement that will change the current location of ... Road to South Limestone across from the University of ... be a state-of-the-art ambulatory care center, owned and operated ... meet the orthopaedic needs of children and their families ...
Breaking Medicine News(10 mins):Health News:5 Signs Indicating That Insulation Needs Replacing as Told By Clean Crawls in Recent Article 2Health News:Studies Link Cold Sore Virus to Alzheimer's Risk 2Health News:Studies Link Cold Sore Virus to Alzheimer's Risk 3Health News:Knowing Genetic Risk for Cancer May Not Change Behavior 2Health News:Medical Solutions Co-Founder/CFO Scott Anderson Named to Staffing Industry Analysts’ 2014 Staffing 100 2Health News:Medical Solutions Co-Founder/CFO Scott Anderson Named to Staffing Industry Analysts’ 2014 Staffing 100 3Health News:Shriners Hospitals for Children - Lexington Announces Plan to Build New $47 Million Facility 2Health News:Shriners Hospitals for Children - Lexington Announces Plan to Build New $47 Million Facility 3
(Date:10/25/2014)... Oct. 24, 2014  As the building blocks ... company access to diverse skill sets and expertise, ... clock business hours for efficiency. However, effectively managing ... According to recent research, more than ... seeing a project not move forward due to ...
(Date:10/22/2014)... , Oct. 22, 2014  Quest Diagnostics (NYSE: ... diagnostic information services, today announced that its Board of ... as a director, effective December 1, 2014. Including Dr. ... Leiden is the Chairman, President and CEO of Vertex ... of scientific and commercial experience in the pharmaceutical and ...
(Date:10/22/2014)... 22, 2014   Reproductive Medicine Associates of ... the field of infertility, presents new clinical research ... The research abstract, released during the 70 th ... meeting in Honolulu, Hawaii , ... defect (SGD) pre-implantation genetic diagnosis (PGD). ...
Breaking Medicine Technology:Work Around the Clock: Successfully Building & Managing Global Virtual Teams 2Quest Diagnostics Adds Jeffrey M. Leiden, M.D., Ph.D., to Board of Directors 2Quest Diagnostics Adds Jeffrey M. Leiden, M.D., Ph.D., to Board of Directors 3New IVF Research Highlights Improved Genetic Screening Approach To Help Parents Have Healthier Babies 2New IVF Research Highlights Improved Genetic Screening Approach To Help Parents Have Healthier Babies 3
Cached News: