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Showing posts with the label Rabies

How does the rabies vaccine work to protect against this deadly virus, and what are common misconceptions about rabies infection and treatment?

Context The user is seeking clarification on the mechanism of action of the rabies vaccine and common claims about rabies infection, particularly regarding its progression and the effectiveness of treatment at different stages. They cite research on natural killer (NK) cells in the peripheral and central nervous systems and rabies's ability to suppress their activation, questioning claims of inevitable fatality once the virus reaches the peripheral nervous system (PNS) or once symptoms begin. The user also expresses curiosity about how the PNS and central nervous system (CNS) are not immediately infected given the ubiquitous presence of nerves and the virus's circulation in the blood. Simple Answer The rabies vaccine teaches your body to recognize and fight the rabies virus. It works by introducing a weakened or inactive form of the virus, triggering your immune system. Your immune system creates antibodies that can neutralize the real virus if you get infected. If exposed, you...

What would happen if a whale or dolphin got rabies? Can studying rabies in marine mammals provide new insights?

Context This question explores the hypothetical scenario of rabies infection in cetaceans (whales and dolphins), which are marine mammals. It also investigates the potential scientific value of studying such infections, assuming they could occur. The question touches upon animal health, disease transmission, and the possibility of novel biological discoveries. Simple Answer Rabies hurts the brain, making animals act strangely. Whales and dolphins are mammals too, so rabies could affect them. We don't know for sure, because it hasn't really happened. Studying it might help us learn about rabies in general. Learning about marine mammals could help us to protect them. Detailed Answer Rabies is a viral disease that primarily affects the central nervous system of mammals. It is almost invariably fatal once clinical signs appear. The virus is typically transmitted through the saliva of an infected animal, usually via a bite. The symptoms of rabies are wide ranging, but often include ...

How do scientists study rabies? Are they actively researching rabies? What methods do they use? Do they infect animals with rabies to study it?

Context This question delves into the methods and practices employed by scientists to study rabies, a viral disease that affects mammals. The inquiry explores the potential use of animal models and other research strategies used to understand the virus, its transmission, and potential treatments. Simple Answer Scientists study rabies in many ways, but they don't intentionally infect animals. They use lab-grown rabies virus to understand how it works. They study animals that have naturally gotten rabies to see how it affects them. Scientists also study the rabies vaccine to make it better and protect people. They're always trying to find new ways to treat rabies and prevent it. Detailed Answer Scientists study rabies using a variety of approaches, with the primary goal of understanding the virus, its transmission, and developing effective treatments and preventive measures. One common method is to study the rabies virus in laboratory settings. This involves culturing the virus i...

Why is the rabies virus able to infect different species, while most other viruses are limited to specific hosts?

Context The question explores the unique ability of the rabies virus to cross species barriers, contrasting it with the typical host specificity of most viruses. Simple Answer Rabies is a tricky virus because it can infect many different animals, unlike most viruses that stick to a single kind of animal. This is because the rabies virus has a clever trick: it can easily change its outer coat, making it look different to the immune system of different animals. This disguise allows the rabies virus to slip past the animal's defenses and infect them. On the other hand, most viruses don't have this trick. They have a specific shape that only fits with certain types of cells in a specific animal. This is why a virus that infects a dog usually can't infect a human. Detailed Answer The rabies virus stands out from most other viruses due to its remarkable ability to transcend species boundaries, infecting a wide range of mammals, including humans. This unusual characteristic stems ...

Why haven't deadly diseases like rabies eradicated themselves?

Context This question explores the concept of disease survival and its relationship to the host's lifespan. It specifically focuses on rabies, a disease with a high fatality rate, and explores why it hasn't disappeared despite its lethal nature. Simple Answer Rabies is a virus that attacks the nervous system and eventually causes death. It spreads through saliva, usually from an animal bite. While rabies is deadly, it doesn't always kill the host immediately. Sometimes, infected animals can live for weeks or even months before they die. During this time, they can still spread the virus to other animals, allowing the disease to persist. Detailed Answer Rabies is a virus that attacks the nervous system and ultimately leads to death. The virus is transmitted through saliva, typically through bites from infected animals. While rabies is fatal, it doesn't always kill the host immediately. In fact, infected animals can often survive for weeks or even months after contracting...

Why does rabies affect certain species differently depending on region and why do humans seem more susceptible to rabies variants?

Context Rabies is a viral disease that affects the central nervous system and is usually fatal once symptoms appear. It is transmitted through the saliva of infected animals, most commonly through bites. In the United States, rabies is most commonly found in raccoons, skunks, bats, and foxes. However, the prevalence of rabies in these species can vary depending on the region. For example, raccoons are the most common rabies-infected animals on the East Coast, while bats are the most common in Illinois. Simple Answer Different regions have different types of rabies variants, which are strains of the virus. These variants may prefer infecting certain species over others. Humans are more susceptible to rabies because we lack the natural resistance that other animals have. When an animal is infected with rabies, it can only pass on the variant it has. Therefore, if an animal is infected with a variant that is not common in its species, it is less likely to transmit the disease to another a...