Rubella (German Measles)

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Rubella (German measles) is an infection caused by the rubella virus. Although it most commonly occurs in young children, it can affect anyone. The illness is usually mild. However, rubella in a pregnant woman can cause serious damage to the unborn child. Immunisation has made rubella uncommon in the UK.

Rubella (German measles) is usually a mild illness. However, if a pregnant women has rubella, the virus is likely to cause serious damage to the unborn child or cause a miscarriage. Rubella can lead to damage to the heart, brain, hearing and sight. The baby is likely to be born with a very serious condition called the congenital rubella syndrome.

Since rubella immunisation was introduced in 1970 there has been a dramatic fall in the number of babies born with the congenital rubella syndrome. Rubella is now a very uncommon infection in the UK as a result of the vaccination programme. However, rubella is still common in many developing countries.

The majority of people have no symptoms when they are infected with rubella (German measles). This is called a subclinical infection. If symptoms do develop, they include the following:

  • Swollen glands, usually behind the ears and at the back of the neck. Sometimes glands in other parts of the body swell. The glands gradually go back to normal over a week or so.
  • A spotty, pink-red rash develops any time up to seven days after the glands swell. The rash usually starts behind the ears, then spreads to the face and neck and then spreads to the rest of the body. The rash lasts 3-5 days before fading.
  • A mild raised temperature (fever), cold, cough and sore throat are common.
  • Sore red eyes (conjunctivitis) may develop for a few days.
  • Joint pains, like a mild arthritis, may develop for a week or so. This is less common in children but is quite common in adults with rubella.
  • Other symptoms may include tiredness and headache.

Bleeding disorders and brain inflammation (encephalitis) are rare complications.

Note: rubella rarely causes complications in healthy people. The main concern of rubella is that is can cause complications in pregnancy.

Yes. Rubella (German measles) is passed on by direct contact and by coughing and sneezing the virus into the air. It takes 2-3 weeks to develop symptoms after being infected. You are infectious from one week before symptoms begin until four days after the rash appears. Therefore, affected children should stay away from school and not mix with others for four days after the rash starts.

If you are pregnant and have rubella (German measles) in the first few months of pregnancy, there is a high chance that the virus will cause severe damage to your developing baby. The virus affects the developing organs and the baby may be born with serious disability - the congenital rubella syndrome.

Complications of congenital rubella syndrome include cataracts, deafness, and heart, lung and brain abnormalities.

Having rubella infection in the first three months of pregnancy also increases your risk of having a miscarriage:

  • If you are pregnant and come into contact with someone with rubella you should check your rubella status. Your midwife or doctor will normally have a record of this if you do not know. (A blood test is routinely taken early in pregnancy. This checks to see if you are immune and have antibodies in your blood against rubella.) Most women are immune due to previous immunisation and will not develop rubella. No further action is needed if you are known to be immune.
  • If you are not immune and come into contact with someone with rubella then blood tests may be advised. These can tell if you are developing rubella before symptoms begin. Further action depends on the results of these tests.
  • See a doctor if you are pregnant and develop an illness that you think may be rubella. Rubella is uncommon now due to immunisation. Other viruses can cause rashes similar to rubella. Most viruses do not harm the unborn child. Blood tests can confirm or rule out rubella if it is suspected.

In the unlikely case that you are confirmed to have rubella, you will be referred to a doctor who specialises in pregnancy and childbirth (an obstetrician). The obstetrician will discuss with you the possibility of your baby having congenital rubella syndrome. The risk is greater if you are less than 20 weeks pregnant. If you are more than 20 weeks pregnant, then the risk of your unborn baby developing congenital rubella syndrome is very small. No treatment can prevent the development of congenital rubella syndrome.

Note: it is very rare for a pregnant woman to catch rubella in the UK. See separate leaflet called Rubella (German measles) and Pregnancy for more detailed information.

Even if you have had a rubella (German measles) immunisation, or have had rubella infection, there is still a small chance that your body has not made enough antibodies against the rubella virus to protect you. The only way to check whether the immunisation has worked is to have a blood test. This checks for rubella antibodies.

Because the congenital rubella syndrome is so important to avoid, if you are thinking about becoming pregnant for the first time, you should have a blood test to check that you are protected.

This blood test is offered to all women in the UK who are pregnant and it may also be offered to younger women in routine health checks. However, if you have not had it, you should ask your practice nurse or GP for the blood test. In particular, women who have come to the UK from overseas and have not been immunised are at greatest risk of having a baby with congenital rubella syndrome.

There is no treatment that will kill the virus. Most people with rubella (German measles) are not very ill, do not need any treatment and soon make a full recovery. The immune system makes antibodies during the infection. These clear the virus and then provide lifelong immunity. It is therefore very rare to have more than one bout of rubella.

Immunisation is now offered to all children in the UK as part of the measles, mumps and rubella (MMR) vaccine. Two doses of the vaccine are needed to provide satisfactory protection against rubella (German measles).

The first dose is usually given between 12 and 13 months. A second dose is usually given at age 3 years and 4 months to 5 years, at the same time as the preschool booster of DTaP/IPV (given as a separate injection). (DTaP stands for diphtheria (D), tetanus (T) and acellular pertussis (aP) (whooping cough). IPV stands for inactivated polio vaccine. Polio is short for poliomyelitis.)

Older children and teenagers are sometimes offered the vaccine when there is an outbreak if they missed the injection when they were younger.

Immunisation gives very good protection and so rubella is now uncommon in the UK. The number of babies born with congenital rubella syndrome has greatly reduced since routine immunisation was introduced.

It is extremely important that all children be immunised against the rubella virus to prevent any complications of rubella occurring. See separate leaflet called MMR Immunisation for more details.

If you are a woman and are planning to get pregnant, if you are unsure if you are immune then see your practice nurse or GP. A blood test will confirm if you are immune. If you are not immune then you can be immunised before you become pregnant.

Further help & information

Original Author:
Dr Tim Kenny
Current Version:
Peer Reviewer:
Dr Helen Huins
Document ID:
4534 (v40)
Last Checked:
27/01/2015
Next Review:
26/01/2018
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