Flyinnizam's Posts
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MansoryMX:okay since you can't take correction |
MansoryMX:U said it indirectly. you said "leaving us anytime soon" but it's never leaving us. |
Pimples:and the one we are facing now is not as deadly as malaria |
MansoryMX:vaccine doesn't stop a virus, same as drugs. it just controls the fatality rate and the number of people it affects. |
PureGoldh:yes oo |
OJODEL10:coronavirus are group of viruses..the one we are facing now is novel corona virus |
Mizwisdom:Lol...that's funny. don't start what you can't finish by using the words "in everything" |
Covid-19 is a new coronavirus, but the first was identified by Dr June Almeida in 1964 at her laboratory in London's St Thomas's Hospital. she was the daughter of a Scottish bus driver, who left school at 16. June Almeida went on to become a pioneer of virus imaging, whose work has come roaring back into focus during the present pandemic. Covid-19 is a new illness but it is caused by a coronavirus of the type first identified by Dr Almeida in 1964 at her laboratory in St Thomas's Hospital in London. The virologist was born June Hart in 1930 and grew up in a tenement near Alexandra Park in the north east of Glasgow. She left school with little formal education but got a job as a laboratory technician in histopathology at Glasgow Royal Infirmary. Later she moved to London to further her career and in 1954 married Enriques Almeida, a Venezuelan artist. COMMON COLD RESEARCH The couple and their young daughter moved to Toronto in Canada and, according to medical writer George Winter, it was at the Ontario Cancer Institute that Dr Almeida developed her outstanding skills with an electron microscope. She pioneered a method which better visualised viruses by using antibodies to aggregate them. Mr Winter told Drivetime on BBC Radio Scotland her talents were recognised in the UK and she was lured back in 1964 to work at St Thomas's Hospital Medical School in London, the same hospital that treated Prime Minister Boris Johnson when he was suffering from the Covid-19 virus. On her return, she began to collaborate with Dr David Tyrrell, who was running research at the common cold unit in Salisbury in Wiltshire. Mr Winter says Dr Tyrrell had been studying nasal washings from volunteers and his team had found that they were able to grow quite a few common cold-associated viruses but not all of them. One sample in particular, which became known as B814, was from the nasal washings of a pupil at a boarding school in Surrey in 1960. They found that they were able to transmit common cold symptoms to volunteers but they were unable to grow it in routine cell culture. However, volunteer studies demonstrated its growth in organ cultures and Dr Tyrrell wondered if it could be seen by an electron microscope. They sent samples to June Almeida who saw the virus particles in the specimens, which she described as like influenza viruses but not exactly the same. She identified what became known as the first human coronavirus. Mr Winter says that Dr Almeida had actually seen particles like this before while investigating mouse hepatitis and infectious bronchitis of chickens. However, he says her paper to a peer-reviewed journal was rejected "because the referees said the images she produced were just bad pictures of influenza virus particles". The new discovery from strain B814 was written up in the British Medical Journal in 1965 and the first photographs of what she had seen were published in the Journal of General Virology two years later. According to Mr Winter, it was Dr Tyrrell and Dr Almeida, along with Prof Tony Waterson, the man in charge at St Thomas's, who named it coronavirus because of the crown or halo surrounding it on the viral image. Dr Almeida later worked at the Postgraduate Medical School in London, where she was awarded a doctorate. She finished her career at the Wellcome Institute, where she was named on several patents in the field of imaging viruses. After leaving Wellcome, Dr Almeida become a yoga teacher but went back into virology in an advisory role in the late 1980s when she helped take novel pictures of the HIV virus. June Almeida died in 2007, at the age of 77. Now 13 years after her death she is finally getting recognition she deserves as a pioneer whose work speeded up understanding of the virus that is currently spreading throughout the world. https://www.bbc.com/news/uk-scotland-52278716?at_campaign=64&at_medium=custom7&at_custom3=BBC+News&at_custom1=%5Bpost+type%5D&at_custom2=facebook_page&at_custom4=E60D0E7A-7F22-11EA-86A5-C3D8923C408C dominique Sissy3
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mosesbola:I won't waste my time on this...even if I use bible reference on anything concerning sex..haven't ppl been having pre-marital sex knowing it is a sin. including u before u got married or will get married. |
she will delete this post herself after it ended in tears |
no woman can control me...period |
4 and 5 are perfect |
Vaccines are like a training course for the immune system. They prepare the body to fight disease without exposing it to disease symptoms. When foreign invaders such as bacteria or viruses enter the body, immune cells called lymphocytes respond by producing antibodies, which are protein molecules. These antibodies fight the invader known as an antigen and protect against further infection. According to the Centers for Disease Control and Prevention (CDC), a healthy individual can produce millions of antibodies a day, fighting infection so efficiently that people never even know they were exposed to an antigen. Unfortunately, the first time the body faces a particular invader , it can take several days to ramp up this antibody response. For really nasty antigens like the measles virus or whooping cough bacteria, a few days is too long. The infection can spread and kill the person before the immune system can fight back. That's where vaccines come in. According to the Children's Hospital of Philadelphia Vaccine Education Center, vaccines are made of dead or weakened antigens. They can't cause an infection, but the immune system still sees them as an enemy and produces antibodies in response. After the threat has passed, many of the antibodies will break down, but immune cells called memory cells remain in the body. When the body encounters that antigen again, the memory cells produce antibodies fast and strike down the invader before it's too late. Vaccines also work on a community level. Some people can't be vaccinated, either because they are too young, or because their immune systems are too weak, according to the CDC. But if everyone around them is vaccinated, unvaccinated people are protected by something called herd immunity . In other words, they're unlikely to even come in contact with the disease, so they probably won't get sick. When it comes to vaccines, sometimes it can pay to follow the crowd. source https://www.livescience.com/32617-how-do-vaccines-work.html https://www.publichealth.org/public-awareness/understanding-vaccines/vaccines-work/ dominique Sissy3 |
ThierryJay:thank you for making him look like an idiot |
Bluezy13:how will the source stop you from doubting facts? if you want source, you use the internet to make more research and clear your doubts |
Vortex369:research scientist my foot. if you don't understand something, you learn...upgrade your knowledge |
Vortex369:I don't know who you are but make research before commenting rubbish |
After the coronavirus enters the host cell, it begins making copies of itself. The host cell then undergoes a process called apoptosis, or programmed cell death, allowing millions of copies of the virus to be released. The host cell breaks down and dies and the new viral particles go on to infect new healthy cells. In some cases, viruses produce proteins called “inhibitors”, which prevent the host cell from dying. This allows the virus to maximize the use of the host cell and make as many copies as possible before destroying it. In other cases, the host cell captures a small fragment of the virus and sends it to the surface. The fragment is presented on the surface of the cell like a flag. It alerts nearby immune cells that the host cell has been compromised and that here is a virus at work inside. The immune cells then rush into the infected cell to screen it. If it turns out that the virus is indeed inside, they begin to destroy it, thus preventing more cells from getting infected by the virus. Below is a photo of coronavirus (yellow) destroying the cell (purple) as seen under electron microscope
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A four-year-old female Malayan tiger at the Bronx Zoo has tested positive for the coronavirus. The tiger, named Nadia, is believed to be the first known case of an animal infected with Covid-19 in the US. The Bronx Zoo, in New York City, says the test result was confirmed by the National Veterinary Services Laboratory in Iowa. Nadia, along with six other big cats, is thought to have been infected by an asymptomatic zoo keeper. The cats started showing symptoms, including a dry cough, late last month after exposure to the employee, who has not been identified. "This is the first time that any of us know of anywhere in the world that a person infected the animal and the animal got sick," Paul Calle, the chief veterinarian at the zoo, told Reuters news agency on Sunday. There have been isolated instances of pets testing positive for the coronavirus elsewhere in the world, but experts have stressed there is no evidence they can become sick or spread the disease. Mr Calle said he intends to share the findings with other zoos and institutions researching the transmission of Covid-19. "We tested the cat [Nadia] out of an abundance of caution and will ensure any knowledge we gain about Covid-19 will contribute to the world's continuing understanding of this novel coronavirus," the zoo said in a statement. Nadia, her sister Azul, as well as two Amur tigers and three African lions who showed symptoms, are all expected to make a full recovery, the zoo said. The big cats did have some decrease in appetite but "are otherwise doing well under veterinary care and are bright, alert, and interactive with their keepers", it said. The zoo said it is not known how the virus will develop in animals like tigers and lions since various species can react differently to new infections, but all the animals will be closely monitored. None of the zoo's other big cats - four other tigers, snow leopards, cheetahs, a clouded leopard, an Amur leopard, a puma and a serval - are showing any signs of illness. "Our cats were infected by a person caring for them who was asymptomatically infected with the virus or before that person developed symptoms," said the zoo. All the tigers showing symptoms were housed in the zoo's Tiger Mountain area. It is unclear if the others will be tested. All four zoos run by the Wildlife Conservation Society in New York City, including the Bronx Zoo, have been closed to the public since 16 March. New measures will now be put in place to protect the animals and their caretakers at all the facilities. The World Organisation for Animal Health says studies are under way to understand the issue more. and urges anyone who has become sick to limit contact with pets.
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dre11:even the person that moved this to front page didn't read everything |
Humility at it peakwhat concerns humility with kneeling? who did Jesus heal for? |
Coool.just keep quiet...he's not the king and not the heir to the throne |
