when do most sporadic cases of polio occur course hero

by Lonie Mosciski IV 6 min read

How much progress has been made in the fight against polio?

Jul 25, 2017 · 7) When do most sporadic cases of polio occur? Small sporadic outbreaks caused by travelers Remains endemic in Afghanastan, Pakistan, Nigeria Small sporadic outbreaks caused by travelers Remains endemic in Afghanastan , Pakistan , Nigeria

What is the global prevalence of poliovirus?

Mar 07, 2020 · Epidemics and sporadic occurrence of polio has historically occurred during summer and autumn in temperate countries. Between 2000 and 2012, 20 countries have reported circulating vaccine-derived poliovirus (cVDPV) outbreaks. Only three of these countries (Afghanistan, Nigeria, and Pakistan) are considered endemic for wild type poliovirus.

How many polio outbreaks have there been in 2019?

Mar 19, 2021 · CDC and its international partners have made significant progress toward polio eradication over the past 33 years. The annual number of wild poliovirus cases has declined by more than 99.9% worldwide from an estimated 350,000 in 1988 when the Global Polio Eradication Initiative was launched.

How many countries in the world are polio-free?

Nov 25, 2019 · Polio is a highly infectious disease that spreads in contaminated water or food and usually strikes children under 5. About one in 200 infections results in paralysis. Among those, a small percentage die when their breathing muscles are crippled.

Where is polio most commonly found?

Polio is still endemic in three countries, i.e., Pakistan, Nigeria and Afghanistan and is eradicated from the rest of the world. Pakistan is considered as the exporter of Wild Polio Virus (WPV) with highest number of polio outbreaks among endemic countries.

What age is most likely to get polio?

Polio mainly affects children younger than 5. However, anyone who hasn't been vaccinated is at risk of developing the disease.Dec 1, 2020

What is polio and what age group does it mainly affect?

Polio (poliomyelitis) mainly affects children under 5 years of age. 1 in 200 infections leads to irreversible paralysis. Among those paralysed, 5% to 10% die when their breathing muscles become immobilized.Jul 22, 2019

Is polio a seasonal virus?

Poliovirus infection typically peaks in the summer months in temperate climates. There is no seasonal pattern in tropical climates.

What is the most common outcome when one is exposed to the polio virus?

Paralysis is the most severe symptom associated with polio, because it can lead to permanent disability and death. Between 2 and 10 out of 100 people who have paralysis from poliovirus infection die, because the virus affects the muscles that help them breathe.

Can you still get polio if you've been vaccinated?

Do people still get polio in the United States? No, thanks to a successful vaccination program, the United States has been polio-free for more than 30 years, but the disease still occurs in other parts of the world.Dec 18, 2019

Are affected when a person suffers from polio?

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.

How many cases of polio are there in 2019?

Reported Poliovirus Cases and Isolations Since 2016, no WPV cases have been identified outside of Afghanistan and Pakistan. Of the 176 WPV1 cases reported in 2019, 29 (16%) occurred in Afghanistan and 147 (84%) in Pakistan (Figure) (Table 1).Aug 27, 2021

What are the 3 types of polio?

There are three individual and immunologically-distinct wild poliovirus strains: wild poliovirus type 1 (WPV1), wild poliovirus type 2 (WPV2) and wild poliovirus type 3 (WPV3). Symptomatically, all three strains are identical, in that they cause irreversible paralysis or even death.Oct 24, 2019

What is polio called now?

The condition looked remarkably like polio—the viral disease that is on the verge of being eradicated worldwide. But none of the kids tested positive for poliovirus. Instead, their condition was given a new name: acute flaccid myelitis, or AFM.Oct 25, 2018

Is Guillain Barre the same as polio?

Measles has been renamed roseola, fifth disease, etc; Polio has been renamed Guillain Barre, transverse myelitis, coxsackie, MS, cerebral palsy (we actually use more respirators today than we ever did iron lungs by the way it is just that iron lungs were too expensive and dangerous to keep using);

Can you be naturally immune to polio?

Poliovirus infection can provide lifelong immunity against the disease, but this protection is limited to the particular type of poliovirus involved (Type 1, 2, or 3). Infection with one type does not protect an individual against infection with the other two types.

What Is A Vaccine-Derived Poliovirus?

What Is Vaccine-Associated Paralytic Polio?

  • Vaccine-associated paralytic poliomyelitis (VAPP) is an adverse event following exposure to OPV. OPV is made with live attenuated (weakened) polioviruses that can result in a case of VAPP. VAPP is sporadic and rare. There is very little evidence that the vaccine virus circulates from VAPP cases, and there are no outbreaks associated with VAPP.
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Has VDPV Been Found in The United States?

  • In 2005, a VDPV was found in the stool of a child in Minnesota who was not vaccinated and had a weakened immune system. The child most likely caught the virus through contact in the community with someone who had received live oral vaccine (OPV) in another country two months before. Subsequently, seven other unvaccinated children in the Minnesota community w…
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