World Bulletin / News Desk
The mayor of Dallas declared a state of emergency in the ninth largest U.S. city on Wednesday to combat the spread of West Nile virus infections, which have been more prevalent than usual in Texas and other states this year.
There have been more cases of West Nile virus reported so far this year than any year since the disease was first detected in the United States in 1999, the Centers for Disease Control said on its website.
Nearly half of the 693 human cases of the mosquito-borne West Nile virus infections reported this year to the CDC have been in Texas, along with 14 of the 26 deaths confirmed by the federal agency as of Tuesday.
The Texas health department said the number of cases of West Nile in the state had reached 465 and there had been 17 deaths. There is a lag in the CDC confirming cases and deaths.
The emergency declaration by Mayor Mike Rawlings followed a similar action last week by Dallas County officials and paves the way for aerial pesticide spraying to begin this week.
Aerial spraying also is being used elsewhere, including in neighborhoods in New York City and Sacramento, California, to combat the spread of West Nile virus. Officials say such spraying is the most effective way to fight the mosquitoes that carry the disease despite safety concerns about exposing people to chemical pesticides.
"We are on track to have the worst year ever for West Nile virus in Texas," said Christine Mann, a spokeswoman for the Texas health department, adding that the number of cases was triple the previous high year of 2003.
It is not clear why the number of West Nile cases in Texas is so high. It could be related to a warmer winter and rainy spring that has contributed to an increased mosquito population, Mann said.
West Nile virus usually flares up in the summer because it is most often transmitted by mosquito bites. People infected can suffer fever and aches that can become severe or even cause death, especially of the elderly, children and other at risk groups. There is no specific treatment for the West Nile infection.
The researchers found that on average the rate of tuberculosis (TB) in big cities was twice the rate of the national TB incidence
Residual sour gas was then burnt in flares at Kashagan's processing plants, polluting the environment, the ministry said in a statement.
Researchers from Britain and the United States found what they describe as the first hard evidence that malaria creeps to higher elevations during warmer years
The CPC's latest outlook brings the forecaster in line with other global meteorologists that have raised their outlook for El Nino's potential return this year.
The child is the second case, following an earlier instance in Mississippi, in which doctors may have brought HIV in a newborn into remission by administering antiretroviral drugs in the first hours of life.
"We will resolutely declare war against pollution as we declared war against poverty," PM Li told the almost 3,000 delegates to the country's largely rubber-stamp legislature in a wide-ranging address carried live on state television.
The research, which lends weight to campaigns for smoking to be banned in private cars and homes, found passive smoking leads to a thickening of children's artery walls, adding some 3.3 years to the age of blood vessels by adulthood.
Professor Jean-Michel Claverie, from the National Centre of Scientific Research (CNRS) at the University of Aix-Marseille in France, said "this is the first time we've seen a virus that's still infectious after this length of time."
The 76-year-old man died on Sunday, 75 days after the operation, the Georges Pompidou European Hospital in Paris said in a statement, adding that the cause of his death could not be known for sure at this stage.
Pacific islanders were eating fewer coconuts as a source of fat and many people in Southeast Asia were getting fewer calories from rice
The researchers had been able to clone the antibodies and would test if they were able to give immunity to a person without the virus
The condition of the baby with kidney disease returns to normal after doctors in the Turkish city of Konya decide against abortion to begin treatment in the womb
Australia's conservative government approved plans to dredge 3 million cubic metres of sand for the port expansion
Frequent nightmares were very common for one in ten children, especially between the ages of three and seven, but effects resulting from nightmares were much more severe in 12-year-olds.
The JAMA Psychiatry suggested that tihis was in connection to sperm mutations in men who become fathers relatively late in life, after comparing children of 24-year-old fathers and 45-year-old fathers.
Millions of people around the world go to bed hungry every night, and yet millions of tons of food end up in trash cans or spoiled on the way to market.