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:10/30/2014)... 2014 Timothy, InstaKNOT’s 4-year-old ... firefighters, showing that you are never too young to ... firefighters Tracey and Carl at the 2013 Santa Arriving ... Pompano Beach Chamber of Commerce. Tracey gave Timothy a ... Timothy wear his real fireman’s hat, and extending an ...
(Date:10/30/2014)... 2014 Don Allred Insurance, a leading ... plans for North Carolina residents, is excited to announce ... Holly Hill Mall. The new branch has been up ... customers through all facets of the insurance selection process ... spokesman Scott Allred couldn’t be happier with the timing ...
(Date:10/30/2014)... Portland, OR (PRWEB) October 30, 2014 ... law firm Hodgkinson Street LLC announces new branding ... Hodgkinson Street Mepham . After David Mepham’s promotion ... revitalizes their brand and website to include Mepham’s name ... leading medical malpractice and mediation firm, the decision to ...
(Date:10/30/2014)... 2014 Paramount Rx, a full-service prescription ... efforts to help people save money through its innovative ... for prescription drugs in the new health care system, ... to bridge the relationship between consumers, businesses and the ... challenges people face today with medical costs is the ...
(Date:10/30/2014)... HealthDay Reporter , WEDNESDAY, Oct. ... with prostate cancer who also have certain heart problems may ... new study suggests. , , The therapy in question is called ... reduce levels of male hormones to prevent the growth of ... research, this hormone therapy was linked to triple the risk ...
Breaking Medicine News(10 mins):Health News:4-year-old InstaKNOT CEO Honors Local Firefighters with Community Support 2Health News:4-year-old InstaKNOT CEO Honors Local Firefighters with Community Support 3Health News:4-year-old InstaKNOT CEO Honors Local Firefighters with Community Support 4Health News:Allred Insurance Satellite Office Grand Opening 2Health News:Hodgkinson Street Mepham Rebrands 2Health News:Paramount Rx Discount Card Program Provides Valuable Resources in Midst of Current Health Care Reform 2Health News:Paramount Rx Discount Card Program Provides Valuable Resources in Midst of Current Health Care Reform 3Health News:Hormone Therapy May Up Heart-Related Deaths in Some Prostate Cancer Patients 2Health News:Hormone Therapy May Up Heart-Related Deaths in Some Prostate Cancer Patients 3
(Date:10/30/2014)... FRANCISCO , Oct. 30, 2014  Nektar Therapeutics ... results for the third quarter ended September 30, 2014 ... U.S.-based financial markets. Howard Robin , president and ... review the results beginning at 5:00 p.m. Eastern Time ... press release and a live audio-only Webcast of the ...
(Date:10/30/2014)... , Oct. 30, 2014  CytRx Corporation ... and development company specializing in oncology, today announced ... its lead drug candidate, aldoxorubicin.  The presentation, titled, ... Approach," will be given by Sant P. ... Oncology Center and principal investigator of the Company,s ...
(Date:10/30/2014)... -- , Extensively hydrolyzed milk formula with LGG ... Cow milk protein allergy (CMPA) is the leading cause of food ... has been managed by eliminating milk proteins from a ... is possible to help build of oral tolerance to ... the first year of life by using an extensively ...
Breaking Medicine Technology:Nektar to Announce Financial Results for the Third Quarter 2014 on Thursday, November 6, 2014, After Close of U.S.-Based Financial Markets 2CytRx Announces Oral Presentation at 2014 Chemotherapy Foundation Symposium 2CytRx Announces Oral Presentation at 2014 Chemotherapy Foundation Symposium 3CytRx Announces Oral Presentation at 2014 Chemotherapy Foundation Symposium 4Experts Present Latest Research at Allergy Day 2Experts Present Latest Research at Allergy Day 3
Cached News: