New way to fight mosquitoes.
Researchers have cultured more about how mosquitoes spot skin odor, and they say their findings could first to better repellants and traps. Mosquitoes are attracted to our lamina odor and to the carbon dioxide we exhale. Previous research found that mosquitoes have certain neurons that enable them to detect carbon dioxide source. Until now, however, scientists had not pinpointed the neurons that mosquitoes use to discern fleece odor.
The new study found that the neurons in use to detect carbon dioxide are also used to identify skin odor. This means it should be easier to obtain ways to block mosquitoes' power to zero in on people, according to the study's authors. The findings appeared in the Dec 5, 2013 children of the journal Cell.
Showing posts with label mosquitoes. Show all posts
Showing posts with label mosquitoes. Show all posts
Tuesday, January 15, 2019
Tuesday, December 29, 2015
5-10 cases of encephalitis among children registered in the usa annually
5-10 cases of encephalitis among children registered in the usa annually.
Although still rare, the darned grim plague known as Eastern equine encephalitis may be affecting more the crowd than before. In a recent scrutinize of two epidemics of Eastern equine encephalitis since the mid-2000s, researchers found 15 cases of the mosquito-borne malady among children in Massachusetts and New Hampshire enlargement. Normally, the US Centers for Disease Control and Prevention records about five to 10 cases a year nationwide.
And "This virus is rare, but it's surrounded by the world's most treacherous viruses, and it's in your own backyard," said heroine periodical creator Dr Asim Ahmed, an contagious disease specialist at Children's Hospital Boston. In 2012 alone, Massachusetts had seven documented cases of Eastern equine encephalitis, which is the highest add of infections reported since 1956. What's more, the pre-eminent tender case ever in Vermont was reported in 2012.
And, overt health surveillance indicates that the virus that causes Eastern equine encephalitis may now have traveled as far north as Maine and Nova Scotia, Canada. Results of the notice are published in the February climax of the log Emerging Infectious Diseases.
Ahmed said that better detection of the virus is at least portion of the reason for the increasing numbers of kinfolk diagnosed with the disease, but he doesn't believe that better testing accounts for all the untrodden cases. "There's a sense that the activity of the virus has increased. People are living closer to habitats of mosquitoes in nature, and international warming is allowing mosquitoes to be effective longer. Most mosquitoes advance in warmer weather".
Although still rare, the darned grim plague known as Eastern equine encephalitis may be affecting more the crowd than before. In a recent scrutinize of two epidemics of Eastern equine encephalitis since the mid-2000s, researchers found 15 cases of the mosquito-borne malady among children in Massachusetts and New Hampshire enlargement. Normally, the US Centers for Disease Control and Prevention records about five to 10 cases a year nationwide.
And "This virus is rare, but it's surrounded by the world's most treacherous viruses, and it's in your own backyard," said heroine periodical creator Dr Asim Ahmed, an contagious disease specialist at Children's Hospital Boston. In 2012 alone, Massachusetts had seven documented cases of Eastern equine encephalitis, which is the highest add of infections reported since 1956. What's more, the pre-eminent tender case ever in Vermont was reported in 2012.
And, overt health surveillance indicates that the virus that causes Eastern equine encephalitis may now have traveled as far north as Maine and Nova Scotia, Canada. Results of the notice are published in the February climax of the log Emerging Infectious Diseases.
Ahmed said that better detection of the virus is at least portion of the reason for the increasing numbers of kinfolk diagnosed with the disease, but he doesn't believe that better testing accounts for all the untrodden cases. "There's a sense that the activity of the virus has increased. People are living closer to habitats of mosquitoes in nature, and international warming is allowing mosquitoes to be effective longer. Most mosquitoes advance in warmer weather".
Saturday, December 21, 2013
Mosquito Bite Waiting To Happen
Mosquito Bite Waiting To Happen.
Some kinsfolk who mow prey to a 2009-2010 outbreak of dengue fever in Florida carried a finical viral strain that they did not cause into the country from a recent trip abroad, according to a fresh genetic review conducted by the US Centers for Disease Control and Prevention. To date, most cases of dengue fever on American smear have typically concerned travelers who "import" the painful mosquito-borne complaint after having been bitten elsewhere scriptovore.com. But though the disease cannot move from woman to person, mosquitoes are able to pick up dengue from infected patients and, in turn, repast the disease among a local populace.
The CDC's viral fingerprinting of Key West, FL, dengue patients therefore raises the specter that a contagion more commonly found in parts of Africa, the Caribbean, South America and Asia might be gaining grip centre of North American mosquito populations. "Florida has the mosquitoes that radio dengue and the feeling to sustain these mosquitoes all year around," cautioned reflect on lead author Jorge Munoz-Jordan. "So, there is covert for the dengue virus to be transmitted locally, and cause dengue outbreaks in the mood for the ones we saw in Key West in 2009 and 2010," he said.
And "Every year more countries combine another one of the dengue virus subtypes to their lists of locally transmitted viruses, and this could be the cause with Florida," said Munoz-Jordan, foremost of CDC's molecular diagnostics movement in the dengue branch of the division of vector-borne disease. He and his colleagues information their findings in the April go forth of CDC's Emerging Infectious Diseases.
Dengue fever is the most widespread mosquito-borne viral infection in the world, now found in roughly 100 countries, the enquiry authors noted. That said, until the 2009-2010 southern Florida outbreak, the United States had remained basically dengue-free for more than half a century.
Ultimately, 93 patients in the Key West arena unique were diagnosed with the ailment during the outbreak, which seemingly ended in 2010, with no unfamiliar cases reported in 2011. But the require of later cases does not give experts much comfort. The reason: 75 percent of infected patients show no symptoms, and the good "house mosquito" natives in the region remains a disease-transmitting reverse waiting to happen.
Some kinsfolk who mow prey to a 2009-2010 outbreak of dengue fever in Florida carried a finical viral strain that they did not cause into the country from a recent trip abroad, according to a fresh genetic review conducted by the US Centers for Disease Control and Prevention. To date, most cases of dengue fever on American smear have typically concerned travelers who "import" the painful mosquito-borne complaint after having been bitten elsewhere scriptovore.com. But though the disease cannot move from woman to person, mosquitoes are able to pick up dengue from infected patients and, in turn, repast the disease among a local populace.
The CDC's viral fingerprinting of Key West, FL, dengue patients therefore raises the specter that a contagion more commonly found in parts of Africa, the Caribbean, South America and Asia might be gaining grip centre of North American mosquito populations. "Florida has the mosquitoes that radio dengue and the feeling to sustain these mosquitoes all year around," cautioned reflect on lead author Jorge Munoz-Jordan. "So, there is covert for the dengue virus to be transmitted locally, and cause dengue outbreaks in the mood for the ones we saw in Key West in 2009 and 2010," he said.
And "Every year more countries combine another one of the dengue virus subtypes to their lists of locally transmitted viruses, and this could be the cause with Florida," said Munoz-Jordan, foremost of CDC's molecular diagnostics movement in the dengue branch of the division of vector-borne disease. He and his colleagues information their findings in the April go forth of CDC's Emerging Infectious Diseases.
Dengue fever is the most widespread mosquito-borne viral infection in the world, now found in roughly 100 countries, the enquiry authors noted. That said, until the 2009-2010 southern Florida outbreak, the United States had remained basically dengue-free for more than half a century.
Ultimately, 93 patients in the Key West arena unique were diagnosed with the ailment during the outbreak, which seemingly ended in 2010, with no unfamiliar cases reported in 2011. But the require of later cases does not give experts much comfort. The reason: 75 percent of infected patients show no symptoms, and the good "house mosquito" natives in the region remains a disease-transmitting reverse waiting to happen.
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