Tag: CMV infection

what are the symptoms of congenital CMV infection in infants?

Congenital CMV infection is a condition that can occur when a developing baby is infected with cytomegalovirus (CMV) before birth. Most babies with congenital CMV never show signs or have health problems. However, some babies have health problems at birth or that develop later25.

Signs and Symptoms

About 10% of infants with congenital CMV infection will have health problems at birth, which include12:

  • Rash
  • Jaundice (yellowing of the skin or whites of the eyes)
  • Microcephaly (small head)
  • Low birth weight
  • Intrauterine growth restriction (low weight)
  • Hepatosplenomegaly (enlarged liver and spleen)
  • Seizures
  • Retinitis (damaged eye retina)

About 40 to 60% of infants born with signs of congenital CMV disease at birth will have long-term health problems, such as12:

  • Hearing loss
  • Vision loss
  • Intellectual disability
  • Microcephaly (small head)
  • Lack of coordination or weakness
  • Seizures

Some babies may have hearing loss that may or may not be detected by newborn hearing tests14. Inflammation of the retina, mineral deposits in the brain, and delayed physical movements are also possible symptoms8.

Diagnosis

Congenital CMV infection is diagnosed by detection of CMV DNA in the urine, saliva (preferred specimens), or blood, within three weeks after birth1.In conclusion, congenital CMV infection can cause a range of symptoms in infants, including rash, jaundice, microcephaly, low birth weight, seizures, and vision and hearing loss. Some babies may not show symptoms at birth but may develop long-term health problems later. Congenital CMV infection is diagnosed by detection of CMV DNA in the urine, saliva, or blood within three weeks after birth.

itations:
[1] https://www.cdc.gov/cmv/clinical/congenital-cmv.html
[2] https://www.cdc.gov/cmv/congenital-infection.html
[3] https://www.childrenshospital.org/conditions/congenital-cytomegalovirus
[4] https://www.urmc.rochester.edu/encyclopedia/content.aspx?contentid=p02351&contenttypeid=90
[5] https://www.healthychildren.org/English/health-issues/conditions/infections/Pages/Cytomegalovirus-CMV-Infections.aspx
[6] https://www.mayoclinic.org/diseases-conditions/cmv/symptoms-causes/syc-20355358
[7] https://www.ncbi.nlm.nih.gov/books/NBK541003/
[8] https://www.mountsinai.org/health-library/diseases-conditions/congenital-cytomegalovirus
[9] https://kidshealth.org/en/parents/cytomegalovirus.html

what are the risk factors for CMV infection during pregnancy?

During pregnancy, there are several risk factors associated with cytomegalovirus (CMV) infection. These include:

  1. Close Contact with Young Children: For pregnant women who have close contact with young children, especially those in daycare or preschool settings, there is an increased risk of CMV infection. This is because young children often have higher levels of CMV in their saliva and urine.
  2. Occupational Exposure: Women who work in environments where they come into contact with bodily fluids, such as healthcare settings or daycare centers, have a higher risk of CMV infection.
  3. Sexual Contact: CMV can be transmitted through sexual activity, so having multiple sexual partners or having a partner with a history of CMV infection can increase the risk.
  4. Blood Transfusions and Organ Transplants: If a pregnant woman receives a blood transfusion or an organ transplant, there is a risk of CMV transmission if the donor has the virus.
  5. Poor Hygiene Practices: CMV can be spread through close personal contact, such as sharing utensils, food, or drinks with an infected person. Poor hygiene practices can increase the risk of contracting CMV during pregnancy.

It is important for pregnant women to practice good hygiene, especially when it comes to handwashing and avoiding contact with individuals who have symptoms of an active CMV infection. If you have concerns about CMV infection during pregnancy, it is best to consult with your healthcare provider for further guidance and information.

How common is CMV infection and how is it transmitted?

Cytomegalovirus (CMV) infection is a common viral infection caused by the cytomegalovirus. It can affect people of all ages, but usually doesn’t cause symptoms in healthy individuals. However, it can cause serious health problems in people with weakened immune systems and in babies infected during pregnancy.

CMV infection is quite common, with estimates suggesting that more than half of adults in the United States have been infected by the age of 40. It is transmitted through various routes, including close contact with bodily fluids such as saliva, urine, blood, breast milk, and sexual contact. It can also be passed from a mother to her baby during pregnancy or childbirth.

In most cases, CMV infection doesn’t cause any symptoms. However, some people may experience flu-like symptoms, such as fever, fatigue, muscle aches, and swollen glands. In individuals with weakened immune systems, CMV can cause more severe symptoms, including pneumonia, liver problems, and vision loss.

CMV infection during pregnancy can be concerning, as the virus can be transmitted to the developing fetus. This is known as congenital CMV infection. While most babies born with CMV do not experience any long-term health problems, some may develop hearing or vision loss, developmental delays, or other complications.

Testing for CMV during pregnancy is not routine, as the majority of pregnant women who are infected with CMV will have healthy babies. However, in certain cases, if there are symptoms or concerns, doctors may order specific tests to detect CMV in the mother’s blood or urine, or in the amniotic fluid surrounding the baby.

The diagnosis of CMV infection is typically made through laboratory tests, which can detect the presence of the virus in bodily fluids such as blood, urine, or saliva. These tests may include blood antibody tests, polymerase chain reaction (PCR) tests, antigen tests, or viral culture.

It’s important to consult with a healthcare professional for proper evaluation, testing, and guidance if you suspect a CMV infection or have concerns related to CMV during pregnancy.