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:4/18/2014)... 18, 2014) ― A new study in the ... in health-related Google searches reveals a recurring pattern that ... , Investigators from San Diego State University, the ... Campaigns, analyzed "healthy" Google searches (searches that included the ... originating in the U.S. from 2005 to 2012. They ...
(Date:4/17/2014)... identified the first genetic variant specifically associated with ... for around 10-15 per cent of all breast ... the breast cancer sub-type, called invasive lobular carcinoma, ... of this particular kind of breast cancer, which ... published today (Thursday) in the journal PloS ...
(Date:4/17/2014)... the University of California, San Diego School of Medicine ... have suffered a recent major loss are more likely ... , The study is published in this month,s issue ... , Because compassionate behaviors are associated with better health ... insights into ways to improve the outcomes of individuals ...
(Date:4/17/2014)... New Rochelle, NY, April 17, 2014U.S. military personnel ... "blast plus impact" concussive traumatic brain injury (TBI) ... were evacuated for other medical reasons. Differences in ... and depression 6-12 months after injury are reported ... , a peer-reviewed journal from Mary Ann Liebert, ...
(Date:4/17/2014)... 17, 2014 By discovering a new mechanism that ... stroke, researchers at UC Irvine and the Salk Institute ... limit or prevent stroke-induced brain damage. , A complex ... of death and primary reason for disability in the ... stroke and lets blood-borne material into the brain, causing ...
Breaking Medicine News(10 mins):Health News:New research shows people are thinking about their health early in the week 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 2Health News:First genetic link discovered to difficult-to-diagnose breast cancer sub-type 3Health News:The ilk of human kindness 2Health News:Long-term effects of battle-related 'blast plus impact' concussive TBI in US military 2Health News:Study IDs new cause of brain bleeding immediately after stroke 2
(Date:1/15/2014)... , January 15, 2014 Shire plc (LSE: ... the Office of Fair Trading (OFT) approval condition to the announced ... (NASDAQ: VPHM).   As a result of the waiver, ... expects to complete the tender offer on January 24, 2014 following ...
(Date:1/15/2014)... LOUISVILLE, Ky. , Jan. 15, 2014  Manufacturers, ... technologies must be able to protect their most ... (Logo: http://photos.prnewswire.com/prnh/20130716/CL46586LOGO ) Because ... Industry, it steadfastly remains one of the most ...
(Date:1/15/2014)... , Jan. 15, 2014 MultiCell Technologies, Inc. ... a U.S. provisional patent application concerning composition of matter, ... achieve targeted tumor cell death.  This ... noncoding double stranded RNA molecules (VSRNAs) which interfere with ...
Breaking Medicine Technology:Shire Waives OFT Condition Relating to the Acquisition of ViroPharma Inc. 2Shire Waives OFT Condition Relating to the Acquisition of ViroPharma Inc. 3Intellectual Property Insurance for Medical-related Products and Services 2MultiCell Technologies Files Patent Application Covering New Class of RNA Therapeutics 2MultiCell Technologies Files Patent Application Covering New Class of RNA Therapeutics 3
Cached News: