There are three wild types of poliovirus
(WPV) – type 1, type 2, and type 3
. People need to be protected against all three types of the virus in order to prevent polio disease and the polio vaccination is the best protection.
What type of virus is polio?
A virus called
poliovirus
causes polio. The virus enters the body through the mouth or nose, getting into the digestive and respiratory (breathing) systems. It multiplies in the throat and intestines. From there, it can enter the bloodstream.
Which type of poliomyelitis has two subdivisions?
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
).
What is the difference between Type 1 Type 2 and Type 3 polio?
Type 1 causes paralysis in about 1 in 200 infections; Type 2 was last recorded in 1999; Type 3
is less virulent than type 1
, causing paralysis in about 1 in 1000 cases.
What are the types of paralytic poliomyelitis?
Paralytic poliomyelitis is classified into three types:
spinal, bulbar, and bulbospinal poliomyelitis
.
What is the root cause of polio?
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.
What is the key symptom of polio?
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.
What kills virus naturally?
- Oregano. Oregano is a popular herb in the mint family that’s known for its impressive medicinal qualities. …
- Sage. …
- Basil. …
- Fennel. …
- Garlic. …
- Lemon balm. …
- Peppermint. …
- Rosemary.
Which is the biggest virus?
| Giant virus name Genome Length Genes | Megavirus chilensis 1,259,197 1120 proteins (predicted) | Mamavirus 1,191,693 1023 proteins (predicted) | Mimivirus 1,181,549 979 proteins 39 non-coding | M4 (Mimivirus “bald” variant) 981,813 756 proteins (predicted) |
|---|
What is the host of polio?
Poliovirus, a human enterovirus that belongs to the family Picornaviridae, is the causative agent of poliomyelitis.
Humans
are the only natural hosts of poliovirus. The virus, however, can be transferred to monkeys when it is directly inoculated into the central nervous system (CNS).
What is Type 3 polio?
Type 3
wild poliovirus was declared eradicated in October 2019
. It was last detected in November 2012. Only type 1 wild poliovirus remains. There are two vaccines used to protect against polio disease, oral polio vaccine and inactivated poliovirus vaccine.
What was the last case of polio?
This means that there is no year-round transmission of poliovirus in the United States. Since 1979, no cases of polio have originated in the U.S. However, the virus has been brought into the country by travelers with polio. The last time this happened was in
1993
.
Do you have polio forever?
There is no cure for polio
, it can only be prevented. Polio vaccine, given multiple times, can protect a child for life.
What are the stages of poliomyelitis?
- Prodromal Stage or Pre-Paralytic Stage- few hours to a few days and 1 to 3 days is the usual duration.
- Acute Stage-3 to 6 weeks from the onset of Poliomyelitis.
- Convalescent Stage- Duration 3 months.
- Stage of Recovery-This stage extends for almost 2 years.
What is Type 2 polio?
cVDPV type 2 (cVDPV2) are the
most prevalent
, with 959 cases occurring globally in 2020. Notably, since the African Region was declared to have interrupted transmission of the wild poliovirus in August 2020, cVDPV are now the only form of the poliovirus that affects the African Region.
Is India free of polio?
Within two decades, India received ‘Polio-free certification’
from World Health Organization on the 27 March 2014
, with the last polio case being reported in Howrah in West Bengal on 13 January 2011.
