en.aazsante.fr

The Largest Portal Of Health And Quality Of Life.

Zika virus: scientists create the most effective method to destroy Aedes aegypti eggs

Zika virus: scientists create the most effective method to destroy Aedes aegypti eggs

Agência Brasil - Scientists announced yesterday (7) the development an effective and cheap method to destroy the eggs of the mosquito that transmits the dengue and the Zika virus, resorting to an odor The researchers from Canada and Mexico tested the method in an urban and remote area of ​​Guatemala and found that they had destroyed seven times more eggs than with common traps in the same areas. During the 10-month study, the team collected and destroyed more than 18,100 Aedes aegypti

eggs per month, using 84 of these new armadulhas (called ovillantas) in seven districts of Sayaxche, 15,000 inhabitants, almost seven times more than the 2,700 eggs collected monthly with 84 traps common in the same zone. The ovillanta is created from two parts of 50 centimeters of an old tire, placed to simulate a mouth, inside which is placed a milky and non-toxic fluid, developed by Laurentia University in Canada, which attracts mosquitoes. In the liquid is a strip of paper or wood where the female of the mosquito lays the eggs. This strip is removed twice a week for monitoring, and the eggs are destroyed by fire or with ethanol. Scientists noted that no new cases of dengue fever were recorded in the study area, a community that would normally have two or more dengue cases, or three dozen cases in that period, a finding they found to be interesting, but episodic.

The author of the study, Gerardo Ulibarri of Laurentian University, said that destroying insect eggs with ovillanta costs a third of that it costs to do it in natural water reservoirs and only 20% of what it costs to use pesticides, which, in addition to killing insects, harm bats, dragonflies and other natural predators of mosquitoes. decided to use tires because they represent 29% of the sites chosen by Aedes aegypti mosquitoes for breeding and also because the used tires are a universal and cheap instrument in ambient

Aedes aegypti mosquitoes - which transmit the Zika virus, dengue fever, chikungunya fever and yellow fever - are extremely difficult to control with other strategies, according to the World Health Organization.


Erectile dysfunction in young people: causes and treatments

Erectile dysfunction in young people: causes and treatments

Is sexual impotence only the disease of old men? A lot of people think so. Knowing the magic that allows penile erection, we can understand why this very common association. On the one hand, age is undoubtedly a powerful risk factor for sexual dysfunction. The older the person is, the greater the chance of a man experiencing situations known to impair blood circulation, such as the aging of blood vessels ( arteries and veins), and more time living with diabetes, hypertension, dyslipidemias, obesity, smoking and other diseases considered chronic.

(Health)

Extreme preoccupation with diet in youth brings problems in the future

Extreme preoccupation with diet in youth brings problems in the future

A study published in the Journal of the American Dietetic Association shows that boys and girls who develop unhealthy eating habits or extreme adolescent diets are more likely to undergo dangerous weight management practices in adulthood. The research followed two groups, which totaled 2,287 individuals for 10 years.

(Health)