Which virus can cause irreversible paralysis and death in some infected individuals

Polio, or poliomyelitis, is a crippling and potentially deadly infectious disease caused by a virus that spreads from person to person invading the brain and spinal cord which can lead to paralysis. 1 in 200 infections leads to irreversible paralysis.

Which virus can cause irreversible paralysis?

Polio (poliomyelitis) mainly affects children under 5 years of age. 1 in 200 infections leads to irreversible paralysis.

Which type of polio causes paralysis?

About 1 percent of polio cases can develop into paralytic polio. Paralytic polio leads to paralysis in the spinal cord (spinal polio), brainstem (bulbar polio), or both (bulbospinal polio). Initial symptoms are similar to non-paralytic polio. But after a week, more severe symptoms will appear.

What disease can cause paralysis and even death?

Botulism (“BOT-choo-liz-um”) is a rare but serious illness caused by a toxin that attacks the body’s nerves and causes difficulty breathing, muscle paralysis, and even death.

What causes poliomyelitis?

Polio is caused by 1 of 3 types of the poliovirus. It often spreads due to contact with infected feces. This often happens from poor handwashing. It can also happen from eating or drinking contaminated food or water.

Is poliomyelitis a virus or bacteria?

Polio is a viral disease which may affect the spinal cord causing muscle weakness and paralysis. The polio virus enters the body through the mouth, usually from hands contaminated with the stool of an infected person. Polio is more common in infants and young children and occurs under conditions of poor hygiene.

What kind of virus is poliovirus?

Poliovirus, a nonenveloped, positive-sense, single-stranded RNA virus, is a member of the Enterovirus genus within the family Picornaviridae.

Is Smallpox a virus or bacteria?

Before smallpox was eradicated, it was a serious infectious disease caused by the variola virus. It was contagious—meaning, it spread from one person to another. People who had smallpox had a fever and a distinctive, progressive skin rash.

What is Zika virus infection?

Key facts. Zika virus disease is caused by a virus transmitted primarily by Aedes mosquitoes, which bite during the day. Symptoms are generally mild and include fever, rash, conjunctivitis, muscle and joint pain, malaise or headache. Symptoms typically last for 2–7 days.

Is polio an RNA virus?

Poliovirus, the prototypical picornavirus and causative agent of poliomyelitis, is a nonenveloped virus with a single-stranded RNA genome of positive polarity. The virion consists of an icosahedral protein shell, composed of four capsid proteins (VP1, VP2, VP3, and VP4), which encapsidates the RNA genome (1).

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Is Mumps A viral disease?

Mumps is a contagious disease that is caused by a virus. It typically starts with a few days of fever, headache, muscle aches, tiredness, and loss of appetite.

How did polio get eradicated?

Thanks to the polio vaccine, dedicated health care professionals, and parents who vaccinate their children on schedule, polio has been eliminated in this country for more than 30 years. This means that there is no year-round transmission of poliovirus in the United States.

Is chickenpox a virus?

Chickenpox is a highly contagious disease caused by the varicella-zoster virus (VZV). The virus spreads easily from people with chickenpox to others who have never had the disease or never been vaccinated. If one person has it, up to 90% of the people close to that person who are not immune will also become infected.

Is diphtheria a virus?

Diphtheria is a serious infection caused by strains of bacteria called Corynebacterium diphtheriae that make a toxin (poison). It is the toxin that can cause people to get very sick. Diphtheria bacteria spread from person to person, usually through respiratory droplets, like from coughing or sneezing.

Is measles a virus or bacteria?

Measles is a highly contagious virus that lives in the nose and throat mucus of an infected person. It can spread to others through coughing and sneezing. If other people breathe the contaminated air or touch the infected surface, then touch their eyes, noses, or mouths, they can become infected.

What is Brunhilde virus?

Brunhilde virus: Type 1 poliovirus. Named after a female chimpanzee from which it was first isolated. There are two other strains of poliovirus: Type 2 (known as the Lansing virus) and Type 3 (known as the Leon virus). Immunity to one strain does not provide protection against the other two.

Is COVID-19 an RNA virus?

COVID-19, short for “coronavirus disease 2019,” is caused by the novel coronavirus SARS-CoV-2. Like many other viruses, SARS-CoV-2 is an RNA virus. This means that, unlike in humans and other mammals, the genetic material for SARS-CoV-2 is encoded in ribonucleic acid (RNA).

What is wild virus?

The naturally occurring, non-mutated strain of a virus. When exposed to antiretroviral (ARV) drugs, wild-type HIV can develop mutations that make the virus resistant to specific HIV drugs.

Do all infections of poliovirus lead to poliomyelitis?

The majority of poliovirus infections are asymptomatic; up to 70% of infected individuals experience no symptoms and about 25% experience mild symptoms. Paralytic poliomyelitis occurs in less than 1% of all infections.

What causes Measle?

The virus. Measles is caused by a single-stranded, enveloped RNA virus with 1 serotype. It is classified as a member of the genus Morbillivirus in the Paramyxoviridae family. Humans are the only natural hosts of measles virus.

Is Zika virus in India?

The number of Zika virus cases in Kanpur, Uttar Pradesh, has breached the 100 mark since the infection was first detected on October 23, as of November 11, 2021.

What is dengue virus?

Dengue virus (DENV) is the cause of dengue fever. It is a mosquito-borne, single positive-stranded RNA virus of the family Flaviviridae; genus Flavivirus. Four serotypes of the virus have been found, a reported fifth has yet to be confirmed, all of which can cause the full spectrum of disease.

Why is it called Covid 19?

This name was chosen because the virus is genetically related to the coronavirus responsible for the SARS outbreak of 2003. While related, the two viruses are different.

Is Ebola a virus or bacteria?

Ebola Virus Disease (EVD) is a rare and deadly disease in people and nonhuman primates. The viruses that cause EVD are located mainly in sub-Saharan Africa. People can get EVD through direct contact with an infected animal (bat or nonhuman primate) or a sick or dead person infected with Ebola virus.

What causes variola virus?

Smallpox is caused by infection with the variola virus. The disease is spread through person to person contact, most often from inhalation of droplet nuclei expelled through the back of the throat (oropharynx) of an infected person.

What causes cowpox?

Cowpox is a skin disease caused by a virus belonging to the Orthopoxvirus genus. Sporadic human cases of cowpox have been reported in Europe, mostly linked to handling of infected animal, usually rodents and cats. Human infection results from direct contact with an infected animal.

Is Smallpox a DNA virus?

Smallpox is a double-stranded, 135- to 375-kilobase (kb) DNA virus that replicates in the cytoplasm of the host cell and forms B-type inclusion bodies (Guarnieri bodies). This is in contrast to herpes viruses, which replicate in the nucleus. The orthopoxviruses are among the largest and most complex of all viruses.

Is measles a DNA virus?

The measles virus is a single-stranded RNA virus of the genus Morbillivirus and the family Paramyxoviridae.

Is mumps RNA or DNA?

Mumps virus is a paramyxovirus in the same group as parainfluenza and Newcastle disease viruses, which produce antibodies that cross-react with mumps virus. The virus has a single-stranded RNA genome. The virus can be isolated or propagated in cultures of various human and monkey tissues and in embryonated eggs.

What is it chicken pox?

Chickenpox is an infection caused by the varicella-zoster virus. It causes an itchy rash with small, fluid-filled blisters. Chickenpox is highly contagious to people who haven’t had the disease or been vaccinated against it. Today, a vaccine is available that protects children against chickenpox.