New invasive species of ticks capable of transmitting several severe diseases spread to the United States posing a threat to human and animal health, according to a report released Thursday.
On An Asian long-term tick is the first invasive tick that will arrive in the United States in about 80 years. He was born in eastern China, Japan, the Russian Far East and the Korean Peninsula, and is now also established in Australia and New Zealand.
In August last year, it was discovered on a 12-year-old Icelandic sheep in western New Jersey. Since then, the operation has been found in Arkansas, Connecticut, Maryland, New York, North Carolina, Pennsylvania, Virginia and West Virginia. The species is found on pets, livestock, wildlife and people. So far, however, there is no evidence that ticks spread the pathogenic microorganisms in humans, domestic animals, or wildlife in the United States, according to a report by the Centers for Disease Control and Prevention.
But public health officials worry about the potential Haemaphysalis longicornis to spread the disease. In other parts of the world, it is a great pest of livestock; her bites can cause severe pain in humans and animals. In some parts of Australia and New Zealand, ticks can suck so much blood from milk cows that cause milk falling by 25 percent, researchers say.
In Asia, functioning carries a virus that causes human haemorrhagic fever and kills up to 30 percent of its victims. Although this virus is not in the United States, it is closely related to the Hartland virus, another life-threatening disease that baptizes the United States. Health workers are particularly concerned about the ability of the tick to adapt to be a vector for that virus and other tick-borne diseases in the United States.
Ticotl is "potentially capable of spreading many diseases," said Lyle Petersen, director of the CDC vector-wrestling department. "We do not really know if diseases will spread with this tick in the United States and, if so, to what extent. But it is very important to quickly consider this."
A female tick can also set up hundreds of fruiting eggs without mating, resulting in large host infections, "the CDC report said.
Diseases of mosquitoes, ticks and bites from flies increased more than tripled in the US from 2004 to 2016, according to the CDC. The increase in these vector diseases has many root causes: expansion of travel and trade, urbanization, population growth and temperature rises.
Temperatures and climate change make the environment more suitable for ticks or mosquitoes that spread pathogens and increase the length of the season when ticks are active, Petersen said.
The following week, officials from several federal agencies – including the CDC, Agriculture, Environmental Protection Agency, National Park Service and Defense Department – meet to develop a national coordinated strategy to combat these vector diseases.
"The problems are getting worse and worse," Petersen said, noting that every country except Alaska is fighting the rise of these diseases. "We are losing this battle."
Authorities say they are trying to raise awareness among public health officials, health workers and veterinarians about a possible threat of this kind. In addition to the CDC report, Petersen and CDC colleagues released an accompanying document in the American Journal of Tropical Medicine and Hygiene, highlighting "significant gaps" in the ability of public health systems to respond to these diseases.
Many diseases spread by ticks are under-reported. There are also no proven measures that can be increased to control many vector diseases that are transmitted through a black knife or a stinging tick that spreads at least seven human pathogens in the United States, including bacteria that cause Lyme disease.
Officials do not know when or how long the long-term ticks arrived in the United States. Between August 2017 and September 2018, there were 53 reports on the functioning in the United States. Countries with the highest percentage of infected countries are New Jersey (33 percent), West Virginia (20 percent), and Virginia (12 percent), including the county of Fairfax (Fairfax District). Using retrospective analysis, scientists believe the invasion happened a few years earlier.
Tadhgh Rainey, an entomologist at Hunterdon County in the Department of Health in New Jersey, discovered the ticks on August 1, 2017, when a woman who was shearing her pet sheep sheep arrived in the department with what she thought were mites on her hands.
For a closer inspection, they proved to be lyrical ticks. And she was covered with them.
"She had them on all her clothes. We are talking more than 1,000 ticks on her body," Rains recalls in an interview. "They were species I had never seen before". The Ranier assistant provided a change of clothes for the woman, and health workers put pants in the freezer to kill ticks.
While Raney tried to identify the species, the woman returned two weeks later, this time with aggravated adult ticks from her sheep. Ranee said he realized that this was nothing he had ever seen and went to visit his farm to see the animal for himself.
"I'm covered with ticks," he said. "They were embedded everywhere over the sheep, thousands of them on the ears, too much to count."
Andrea Egisi, a research scientist at the Cancer Monmouth Laboratory at Rutgers University, has identified the function using DNA analysis, and her identity was later confirmed by US scientists.
Rani said the tick probably came to the United States on a large animal. This part of the country has actively produced horses and sheep abroad. The sheep concerned never traveled outside the country. "Or it could come to a man who went on raising nature in New Zealand," he said.
Officials from the health department managed to kill all the ticks of the sheep and remove them at the woman's property. The sheep, named Hannah, died recently from old age, said Rhine. In the health department there are women's pants because "she still does not like her pants".
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