RAPID MUTATION OF THE ZIKA VIRUS.

According to Times report,Scientists are questioning how the zika virus spreads. Until recently, experts believed Zika was a relatively benign virus spread by mosquitoes. But now that it’s been linked to more than 1,000 microcephaly cases, scientists have taken a closer look, recently declaring it “scarier than we initially thought,” as one U.S. health official put it this week. The Centers for Disease Control and Prevention (CDC) recently announced it is now absolutely confident that Zika causes microcephaly—a connection that was suspected but not proven. It also appears to be linked to other disorders like Guillain-Barré syndrome and other autoimmune syndromes. The virus, experts now know, can be transmitted through sex. In a new twist, experts are questioning the idea that mosquitoes are the primary cause of transmission. In a new study, researchers at the University of California, Los Angeles (UCLA), looked at sequences of the Zika virus over decades and found notable changes in the virus over time, suggesting that the virus’ ability to mutate is a reason why it is able to trigger different types of disease. They also noticed that the sequenced strains of Zika from mosquitoes do not match all the strains in humans from this outbreak. This suggests that more people than was expected may be getting the virus some other way. The UCLA team partnered with Chinese Academy of Medical Sciences and Peking Union Medical College in Beijing and compared 40 strains of Zika from past outbreaks as well as strains from the current one. The researchers analyzed some strains collected from people, some from monkeys, and some from mosquitoes. When sequences of the viruses were compared, the scientists noted a variety of differences between them. The curious angle, the researchers note, is that the strains of the virus collected from humans in this outbreak haven’t matched the strains seen in mosquitoes.“We haven’t found any human sequences in the mosquito in recent history, noted the researchers. The team thought they haven’t been looking hard enough. and If we can’t find them, it brings into question whether the mosquito is the primary mode of transmission in the current epidemic. The researchers suggest, that other modes of transmission, like sex, may play a bigger role. The cases of sexually transmitted Zika— was revealed it can be spread via anal sex as well as vaginal sex The CDC released precautions that people who are in areas of active Zika transmission need to practice safe sex, and abstinence may be recommended during pregnancy. There are currently no areas of active Zika transmission in the U.S., but the virus is spreading locally in Puerto Rico. The researchers of the current study say there’s much more that needs to be done before scientists will fully understand Zika. The team plans to continue studying the strains involved in the ongoing outbreak as a way to identify possible targets for drug and vaccines. The need to broaden our thinking about how this disease can be transmitted and how to stop it is very vital. culled from time.com

BRAZIL CONFIRMS ZIKA INFECTION THROUGH BLOOD TRANSFUSION.

Brazilian health authorities confirmed on Thursday a case of transmission of Zika through a transfusion of blood from a donor who had been infected with the mosquito-borne virus that is spreading rapidly through the Americas.The health department of Campinas, an industrial city near Sao Paulo, said a man with gunshot wounds became infected with Zika after multiple blood transfusions in April 2015. Officials said they determined that one of the people whose donated blood was used in the transfusion had been infected with Zika. Zika is usually contracted via mosquito bites, so transmission of the illness through blood transfusions adds another concern to efforts to contain the outbreak. Some countries have tightened procedures for blood donations, to protect blood supplies. Zika has been reported in 30 countries since it first appeared in the Americas last year in Brazil, where it has been linked to thousands of babies being born with microcephaly. This is a condition where infants have abnormally small heads and often have underdeveloped brains. Campinas health officials said the donor of the contaminated blood developed symptoms afterwards that were mistaken for dengue, a virus borne by the same mosquito that transmits Zika. A blood test that showed he had Zika was not completed until Jan. 28 this year. The blood center at the University of Campinas said a second person who donated blood in May developed symptoms and tested positive for Zika, though the recipient of the contaminated blood has not developed symptoms of the virus. Brazil’s Health Ministry said the first recipient died of his wounds and not from the Zika infection. It said it was reinforcing instructions to blood banks that people infected with Zika or dengue not be permitted to donate blood for 30 days after full recovery from the active stage of Zika infection. The American Red Cross urged prospective donors who have visited Zika outbreak zones to wait at least 28 days before giving blood, but said the risk of transmitting the virus through blood donations was “extremely” low in the continental United States. The agency asked donors who give blood and subsequently develop symptoms consistent with Zika within 14 days to notify the Red Cross so the product can be quarantined. Also causing concern is the possibility of transmission through sexual contact. Health officials in Texas reported on Tuesday that a person in Dallas became infected after having sex with another person who had traveled in Venezuela, where the virus is circulating. story source;news daily.(http://newsdaily.com/2016/02/brazil-confirms-zika-infection-from-a-blood-transfusion/)

ZIKA VIRUS INFECTION AND SEX.

A rare case of the Zika virus being transmitted through sex, not a mosquito bite, has been reported in the US.A patient infected in Dallas, Texas, is likely to have been infected by sexual contact, the Centers for Disease Control (CDC) told the BBC The person had not travelled to infected areas but their partner had returned from Venezuela. Zika is carried by mosquitoes and has been linked to thousands of babies being born with underdeveloped brains. It is spreading through the Americas and the World Health Organization (WHO) has declared the disease linked to the virus a global public health emergency. The American Red Cross has meanwhile urged prospective blood donors returning from Zika-hit countries to wait at least 28 days before donating their blood. The "self-deferral" should apply to people returning from Mexico, the Caribbean or Central or South America during the past four weeks, the Red Cross said in a statement. If Zika can readily spread through sex, then it poses a risk to every country not just those with the Aedes mosquito. The authorities have said sexual transmission is rare, but last year they would have said any case of Zika was rare, too. This explosive outbreak has caught the world by surprise and many key questions remain unanswered. Exactly how common or rare is sexual transmission? Can it be spread by the 80% of people who show no symptoms? How long does the virus persist in semen? When is it safe to have sex again? What should men do after visiting affected countries? Can women also spread the virus through sex? However, this is not a new HIV/Aids moment. HIV infection is incurable and dramatically shortens lives without daily medication. Zika infections are short, mild and pose a significant threat only in pregnancy. Anne Schuchat, principal deputy director for CDC, said this was the first case it had dealt with involving a "non-traveller"."We don't believe this was spread through mosquito bites, but we do believe it was spread through a sexual contact."A statement issued by the CDC said the best way to avoid Zika virus infection was "to prevent mosquito bites and to avoid exposure to semen from someone who has been exposed to Zika".The case is "significant" if it was definitely transmitted through sexual contact, Alaka Basu, a senior fellow for public health at the UN Foundation. Story credit BBC.

EBOLA RESURGENCE IN LIBERIA.

The deadly Ebola virus has reared its ugly head again in Liberia just when the country was to be pronounced EBOLA FREE. The latest victim a 44-year old woman died on 27/3/2015, her boyfriend was an Ebola survivor indicating that sexual transmission is a route of infection of the Ebola virus. Research has shown traces of Ebola virus in semen of survivors for at least 82 days after onset of symptoms ,to this end the W.H.O has advised Ebola survivors to abstain from sex during a 90- day period following recovery. The deputy health minister and head of the Ebola response team; Tolbert Nyenswah reiterated the stand of W.H.O and suggested that survivors go a step further until the the pathway of transmission is better understood. He suggested that Ebola survivors consider use of condoms for all sexual acts beyond 3 months. The Ebola virus has been linked to non-human primates such as monkeys and apes, the fruit bats has also been linked as a reservoir host. It has been documented that hunting in deep forest for wild animals(bush meat) and bats ,subsequent preparation and consumption is a major route of infection with the Ebola virus.The management of the sick in terms of cleaning vomitus, diarrhoea and other body fluids is responsible for spread.The burial rites and community -based burial ceremonies has further propagated the spread of the virus across the borders. The contamination of bedding, clothing and surfaces also contribute to spread of virus. The symptoms include fever,vomiting,diarrhoea and hemorrhaging .The bleeding is from all orifices, the diarrhoea and vomitus are also blood tinged. The envelope on the RNA virus is easily disrupted by washing with soap and water,hence hand washing is advocated. The use of alcohol based hand sanitizers has also been proven to inactivate the virus. The use of bleach to decontaminate surfaces,floors and drains is very effective for killing the virus. COMPLACENCY has been identified as the major cause of new cases of Ebola, it will be of paramount importance to be alert and be proactive. KEEP WASHING HANDS,WASH FLOORS/SURFACES WITH BLEACH.VISIT AN HOSPITAL IF YOU HAVE ANY OF THE EBOLA SYMPTOMS AND REPORT TO HEALTH AUTHORITIES IF YOUVE HAD CONTACT WITH PERSON WITH EBOLA,OR HAVE VISITED COUNTRIES WITH EBOLA CASES.