Navigation Links
How coughs and sneezes float farther than you think
Date:4/8/2014

The next time you feel a sneeze coming on, raise your elbow to cover up that multiphase turbulent buoyant cloud you're about to expel.

That's right: A novel study by MIT researchers shows that coughs and sneezes have associated gas clouds that keep their potentially infectious droplets aloft over much greater distances than previously realized.

"When you cough or sneeze, you see the droplets, or feel them if someone sneezes on you," says John Bush, a professor of applied mathematics at MIT, and co-author of a new paper on the subject. "But you don't see the cloud, the invisible gas phase. The influence of this gas cloud is to extend the range of the individual droplets, particularly the small ones."

Indeed, the study finds, the smaller droplets that emerge in a cough or sneeze may travel five to 200 times further than they would if those droplets simply moved as groups of unconnected particles ? which is what previous estimates had assumed. The tendency of these droplets to stay airborne, resuspended by gas clouds, means that ventilation systems may be more prone to transmitting potentially infectious particles than had been suspected.

With this in mind, architects and engineers may want to re-examine the design of workplaces and hospitals, or air circulation on airplanes, to reduce the chances of airborne pathogens being transmitted among people.

"You can have ventilation contamination in a much more direct way than we would have expected originally," says Lydia Bourouiba, an assistant professor in MIT's Department of Civil and Environmental Engineering, and another co-author of the study.

The paper, "Violent expiratory events: on coughing and sneezing," was published in the Journal of Fluid Mechanics. It is co-written by Bourouiba, Bush, and Eline Dehandschoewercker, a graduate student at ESPCI ParisTech, a French technical university, who previously was a visiting summer student at MIT, support
'/>"/>

Contact: Abby Abazorius
abbya@mit.edu
617-253-2709
Massachusetts Institute of Technology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. With new study, aquatic comb jelly floats into new evolutionary position
2. Floating dock from Japan carries potential invasive species
3. Bigger creatures live longer, travel farther for a reason
4. Thinking it through: Scientists seek to unlock mysteries of the brain
5. Climate engineering -- what do the public think?
6. Hoyos Labs, a Digital Infrastructure Security Company, Launches; Rethinks How We Authenticate and Secure Identity
7. Fund launched to seed new thinking in sustaining the future of health
8. Researchers call for rethinking efforts to prevent interplanetary contamination
9. Major rethink needed if chemical industry is to meet greenhouse gas targets
10. A way of thinking may enable battle but prevent war crimes
11. Study prompts rethink of how ovaries develop
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... RALEIGH, N.C. , Dec. 16, 2014 ... has licensed its PerformTek biometric technology to industry leaders ... their highly accurate, clinically validated, biometric wearable products. These ... January 6-9 in Las Vegas . ... the technology is accurate, flexible and robust – with ...
(Date:12/11/2014)... --Research and Markets , ... ) has announced the addition of the ... their offering. One major trend ... multimodal biometric systems. Multimodal biometric systems utilize more ... and identification purposes. This helps to reduce the ...
(Date:12/10/2014)... N.C. , Dec. 9, 2014  Wake Forest Baptist ... education building for its School of Medicine. Funding for ... larger capital campaign that will be publicly launched next ... be located in the former 60 series R.J. Reynolds ... Innovation Quarter. Construction will begin immediately with plans to ...
Breaking Biology News(10 mins):Valencell PerformTek Biometrics Power the Most Accurate Wearables at CES 2015 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 2Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 3Wake Forest Baptist to Build New Medical Education Facility In Wake Forest Innovation Quarter 4
... category for the largest human-designed protein, then a team of ... have designed and successfully synthesized a variant of a protein ... It is more than twice the size of the previous ... of Washington in 2003. The synthetic protein, designated FLR, ...
... A study conducted by researchers at the Johns Hopkins ... patterns of drug resistance in malaria-causing parasites taken from ... in human blood samples showed a high prevalence for ... widely used to treat malaria in the region. However, ...
... CHAPEL HILL, N.C. After a heart attack, the portions ... scar tissue. Researchers have long sought ways to avoid this ... its ability to pump blood throughout the body and eventually ... of North Carolina at Chapel Hill School of Medicine shows ...
Cached Biology News:Creation of the largest human-designed protein boosts protein engineering efforts 2Creation of the largest human-designed protein boosts protein engineering efforts 3Contrasting patterns of malaria drug resistance found between humans and mosquitoes 2Scarring a necessary evil to prevent further damage after heart attack 2
(Date:12/22/2014)... (PRWEB) December 22, 2014 ... peer-reviewed publication of original research, reviews and editorials ... and clinical practice, today published a provocative article ... the development, progression and potential treatment of prostate ... endocrinology research and proposes the possibility that there ...
(Date:12/22/2014)... Memphis, TENN (PRWEB) December 22, 2014 ... with Donor Egg Bank USA , a network ... the country. Through this partnership, patients have fast access ... for in vitro fertilization, IVF . Fertility Associates of ... to offer this fertility treatment option. , Dr. ...
(Date:12/19/2014)... 19, 2014 Charm Sciences is pleased ... the Detection of Aflatoxin M1 in raw commingled milk ... third party validation. The peer reviewed report of the ... Institute for Agricultural and Fisheries Research (ILVO-T&V) has been ... Aflatoxin B1, the most toxic aflatoxin and a known ...
(Date:12/19/2014)... 19, 2014 Naurex Inc., a biopharmaceutical company ... diseases of the central nervous system, today announced that ... officer, will present at the 33 rd annual ... place at 3:00 p.m. PST on Tuesday, January 13, ... San Francisco, Calif. About ...
Breaking Biology Technology:Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 2Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 3Prostate Cancer Experts Dissect the Role of Follicle-stimulating Hormone in the Development, Progression and Potential Treatment of Prostate Cancer 4Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 2Fertility Associates of Memphis Announces Partnership with Donor Egg Bank USA 3Charm Sciences Achieves Independent Validation of First 15 Minute Quantitative Screening Method for Aflatoxin M1 2Naurex to Present at 33rd Annual J.P. Morgan Healthcare Conference 2
... fight cancer, rheumatoid arthritis, as well as enhance ... CEL-SCI Corporation (NYSE Amex: CVM ) ... 11th annual National Foundation of Infectious Diseases Conference ... L.E.A.P.S.(TM) (Ligand Epitope Antigen Presentation System) vaccine technology ...
... April 27 MannKind Corporation (Nasdaq: MNKD ... on Monday, May 4, 2009.Management of the Company will ... financial results and other Company developments at 4:00 PM ... will be its Chairman and Chief Executive Officer, Alfred ...
... SAN DIEGO, April 27 Cadence Pharmaceuticals, Inc. (Nasdaq: ... clinical trials of its investigational product candidate, Acetavance(TM) (intravenous ... Regional Anesthesia and Pain Medicine (ASRA) 34th Annual Regional ... and at the Society of Hospital Medicine (SHM) Annual ...
Cached Biology Technology:CEL-SCI Presents Data at Prestigious Medical Conference Demonstrating That Its L.E.A.P.S. Technology Stimulates Maturation of Human Blood Cells Into Dendritic Cells Suggesting Potential for Prevention and Treatment of Infectious Disease 2CEL-SCI Presents Data at Prestigious Medical Conference Demonstrating That Its L.E.A.P.S. Technology Stimulates Maturation of Human Blood Cells Into Dendritic Cells Suggesting Potential for Prevention and Treatment of Infectious Disease 3CEL-SCI Presents Data at Prestigious Medical Conference Demonstrating That Its L.E.A.P.S. Technology Stimulates Maturation of Human Blood Cells Into Dendritic Cells Suggesting Potential for Prevention and Treatment of Infectious Disease 4MannKind Corporation to Hold First Quarter Financial Results Conference Call on May 4, 2009 2Cadence Pharmaceuticals Announces Presentations at Upcoming Scientific Conferences 2
... DNA Polymerase is a premium quality recombinant ... thermostable enzyme is suitable for a wide ... highest purity and reproducible performance, each preparation ... quality control assays. NovaTaq DNA Polymerase possesses ...
... cell sorter sets a new standard for ... a revolutionary new design in instrumentation, this ... multicolor analysis. The BD FACSAria instrument is ... fixed-alignment cuvette flow cell. This new ...
Mouse monoclonal antibody raised against a partial recombinant COG2. NCBI Entrez Gene ID = COG2...
Mouse polyclonal antibody raised against a partial recombinant IFNA13. NCBI Entrez Gene ID = 3447...
Biology Products: