The pooled prevalence of Zika infection in blood donations was 1.02%. The prevalence varied greatly and reached to high-risk level in most of the situations. The results suggest that nucleic acid tests (NAT) for blood screening and pathogen reduction/inactivation technology (PRT) should be implemented in Zika-endemic areas and appropriate strategies should be designed according to different conditions.
“The invasive Aedes species, which is what we are seeing a lot of, can transmit Zika, yellow fever, chikungunya and dengue,”
If a visitor comes to LA with active zika, yellow fever, chikungunya or dengue and is bitten by a local LA Aedes, that mosquito can become ground zero for the spread of those diseases in LA! With modern air travel and global warming, it is inevitable that those diseases get a foothold in LA unless LA has a very active and aggressive vector control system.
There is a place where cancer can be cured in just 42 hours and where all the doctors in the world are conspiring to deceive the population. It is a place where you can “cure” autism with bleach, and where vaccines, far from preventing epidemics, actually spread them. This place is called social media, where a losing battle is being waged on a daily basis against dangerous health hoaxes and misinformation. In Spain, the internet is the second most important source of information on pseudotherapies, and two-thirds of citizens go online to read up on health issues.
About 75% of counties on the US mainland have suitable habitat for Aedes mosquitoes, CDC researchers say.
Texas health officials today announced the state’s first probable local Zika infection of the year, which also appears to be the first local case reported in the United States for 2017.The patient is a Hildago County resident who had not traveled outside the area or had any other risk factors, the Texas Department of State Health Services (TSDHS) said in a press release. Hildago County, located in the Rio Grande Valley, is in far southern Texas on the border with Mexico.The virus was probably transmitted by a mosquito bite in South Texas some time in the last few months, and lab tests show that the person is no longer at risk of spreading Zika to mosquitoes.In April the TDSHS expanded its recommendations for testing pregnant women and people with Zika infections in six South Texas counties, which led to thousands of tests being conducted and to the identification of the newly identified case.
So far, yellow fever is currently being transmitted by two types of mosquitoes on Brazil, the Haemagogus or Sabethes. If yellow fever is introduced to a major urban center, the virus could jump to the Aedes aegypti mosquito, making human transmission more likely.”There is no evidence of human cases of yellow fever virus infection transmitted by Aedes aegypti, the vector that could sustain urban transmission of yellow fever,” the WHO said in its update.
CDC adds 4 nations to Zika travel guidanceThe CDC announcement adds Angola, Guinea-Bissau, Maldives, and Solomon Island to a long list of countries on its travel advisory. For all four, public health officials are reporting that mosquitoes infected with Zika virus are spreading the disease to people.The CDC’s Angola and Maldives advisories includes maps showing parts of the country that are above 6,500 feet elevation, thought to be a lower risk, because mosquitos that spread Zika don’t usually live at higher elevations.
“We wondered if it was just because people were there, but we tested [and] it was actually due to the fragmented forest with people present … as people start to encroach.”Fruit bat populations increase in fragmented forest conditions, while their contact with humans also increases.Deforestation is increasing in West Africa to provide land to grow cocoa and palm oil and in central Africa, where other ebola outbreaks have occurred, to meet demand for hardwoods.”It shows there’s different implications in how you encroach in the environment. We in very rich countries, what are we doing that’s encouraging deforestation and habitat encroachment?
The two technologies could be “transformational,” said Dan Strickman, a senior program officer at the foundation. The next challenge, however, will be to identify the approaches that work best in combination with existing medical treatments so as to shrink the footprint of the disease over the next ten to fifteen years, Karl Malamud-Roam, manager of Rutgers University’s public health pesticides program, told the Seattle Times.
Finding out how human behavior facilitates the expansion of growth of malaria carrying mosquitoes would cost less but would show that industrial farming and deforestation are the chief facilitators of malaria’s continual comebacks.
For Louise Hansen, the story has been the same every time she’s flooded: The water starts to creep into her house in the middle of the night.In 2009 — the first time her west Houston home flooded after she moved into it about a decade earlier — she figured it was an anomaly. Then it happened again in 2015. And again in 2016.Three times in less than 10 years — for a home that’s not in any floodplain identified by the Federal Emergency Management Agency. “It’s actually paralyzed me,” said Hansen, who grew up in the area and is now selling her house just for the lot value. “I just don’t think I can go through another flood.”Many of Hansen’s neighbors, who live in an area of Houston known as Memorial City, have had the same experience. They’ve flooded in 2009, 2015 and 2016, and none of them live in any known floodplain.
Source: Boomtown, Flood Town