Navigation Links
Control malaria by segmenting sleeping arrangements
Date:11/18/2013

Better malaria control might come from segregating household sleeping arrangements, according to a new study co-authored by a University of Guelph professor.

The researchers found malaria eradication related more to household size than to a country's wealth or temperature. Guelph economics professor Ross McKitrick and two Finnish professors, Larry and Lena Huldn, found that when average household size drops below four persons, malaria extermination is much more likely.

Malaria is transmitted by infected mosquitoes. The research team examined data on malaria insect vectors, as well as demographic, sociological and environmental factors for 232 countries. Malaria is still prevalent in 106 countries.

"When we controlled for all the variables, the factor that had the most explanatory power on malaria control was household size," said McKitrick.

"Malaria-bearing mosquitoes mainly feed at night, and tend to return to the same location for blood meals. The more people who sleep in one area, the greater the likelihood of an infected mosquito spreading the parasite to a new, uninfected victim."

Malaria infects red blood cells and can cause anemia, nausea, fever and, in some cases, death. Each year, 225 million people are infected and 800,000 die, mostly children.

"It is a common misconception that malaria is a tropical disease, and with 90 per cent of malaria deaths taking place in Africa, it is easy to see why people believe this," said McKitrick.

"But historically, malaria has occurred in all climate zones including the Arctic, and was endemic in North America and Europe a hundred years ago. In many cases, the disease disappeared even in countries that made no efforts to fight it, while others that tried to eradicate it failed. We found declining average household size key to explaining this pattern. "

The researchers looked at factors such as gross domestic product per capita, urbanization and slums, latitude, mean temperature, forest coverage, national DDT us, household size and even religion.

Countries with a significant Muslim population generally had large households but did a better job of eradicating malaria, with the researchers speculating it may be because of their segregated sleeping arrangements. Males and females generally sleep in separate areas.

As household size continues to decline, said McKitrick, malaria should gradually disappear. But countries need not wait for that to happen.

In Vanuatu with an average 5.6 people per household providing bed nets and effective drug distribution and surveillance since 1996 has effectively wiped out malaria.

"The key factor is segmenting sleeping quarters and greater use of bed nets in those countries where malaria is still prevalent," he said.

"Individual bed nets can emulate a household with several bedrooms, making it difficult for the mosquitoes to transmit the parasite to other household members."


'/>"/>

Contact: Ross McKitrick
rmckitri@uoguelph.ca
519-824-4120 x52532
University of Guelph
Source:Eurekalert

Related biology news :

1. NIH funds researchers using light to control and monitor neural activity
2. Snakes control blood flow to aid vision
3. Automated system promises precise control of medically induced coma
4. Controlling the triggers of age-related inflammation could extend healthspan
5. Targeted culling of deer controls disease with little effect on hunting
6. Pest control presentations at Entomology 2013
7. Melatonin helps control weight gain as it stimulates the appearance of beige fat
8. Sensors allow for efficient irrigation, give growers more control over plant growth
9. In odd-looking mutant, clues about how maize plants control stem cell number
10. Discovery of cell division master controller may improve understanding and treatment of cancer
11. Drug resistance-associated genes: A cornerstone for the control and protection against tuberculosis
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/8/2019)... ... September 06, 2019 , ... ... human mesenchymal stem/stromal cell (hMSC) biomanufacturing systems, today announces its release of ... and media system designed for product development. RoosterBio continues to simplify MSC ...
(Date:8/29/2019)... , ... August 28, 2019 , ... Lajollacooks4u has expanded ... Diego-based team building and cooking events company has seen record growth in 2019, having ... as Amazon, ServiceNow, Vistage and Illumina, have all visited the company’s La Jolla-based venue, ...
(Date:8/27/2019)... ... August 27, 2019 , ... Ambry Genetics ... genetic testing guidelines. In the largest cohort study of its kind, Ambry presents ... patients. , Clinicians use guidelines to inform decisions about which patients should ...
Breaking Biology News(10 mins):
(Date:9/4/2019)... ... September 03, 2019 , ... ... and manufacturing solutions for drugs, biologics, gene therapies, and consumer health products, ... at the upcoming Nordic Life Science Days (NLS Days) conference, being held ...
(Date:8/27/2019)... ... August 27, 2019 , ... Dr. Kim Carlson is a veterinary surgeon ... Peninsula Veterinary Surgical Group , a new surgical practice in San Mateo. She ... and add more veterinary specialists as the practice grows. , When asked about the ...
(Date:8/15/2019)... ... , ... PathSensors announced today that Roger Lawrence has joined ... of Food Technologists (IFT) Board of Directors, Illinois Institute of Technology (IIT) Institute ... and Applied Nutrition (JIFSAN) Advisory Council and the University of Maryland College of ...
(Date:8/6/2019)... ... August 06, 2019 , ... The San Diego ... launching the biweekly SDBN BUZZ podcast focused on connecting the region’s biotech community ... serve to promote the region and attract external employers, investors, scientists, and others ...
Breaking Biology Technology: