What is Parvovirus B19?
Date: 2 سال قبل
Primate erythroparvovirus 1, generally referred to as B19 virus, parvovirus B19 or sometimes erythrovirus B19, is the first known human virus in the family Parvoviridae , genus Erythroparvovirus . It is a non-enveloped virus that contains a single-stranded linear DNA genome of approximately 5,600 base pairs in length. The name is derived from Latin, parvum meaning small, reflecting the fact that B19 ranks among the smallest DNA viruses. B19 virus is most known for causing disease in the pediatric population; however, it can also affect adults.
Parvovirus B19 infects only humans. You can have a range of symptoms depending on your age and overall health. About two out of 10 people who get infected with this virus will have no symptoms. Others may have only mild, rash illness.
Less common symptoms of parvovirus B19 infection include painful or swollen joints (polyarthropathy syndrome), which is more common in adults, and severe anemia (a condition in which the body doesn’t have enough healthy red blood cells). In rare cases, some of these symptoms can persist for a long time.
Parvovirus B19 spreads through respiratory secretions, such as saliva, sputum, or nasal mucus, when an infected person coughs or sneezes. Parvovirus B19 can also spread through blood or blood products. A pregnant woman who is infected with parvovirus B19 can pass the virus to her baby. Any pregnant woman who may have been exposed to parvovirus B19 should contact their obstetrician or healthcare provider as soon as possible.
Your healthcare provider can do a blood test to determine if you are susceptible or possibly immune to parvovirus B19 infection or if you were recently infected. This is not a routine test but can be performed in special circumstances.
There is no vaccine or medicine that can prevent parvovirus B19 infection. You can reduce your chance of being infected with parvovirus B19 or infecting others by:
· washing your hands often with soap and water
· covering your mouth and nose when you cough or sneeze
· not touching your eyes, nose, or mouth
· avoiding close contact with people who are sick
· staying home when you are sick