Red Menace: How To Recognize Rubella

28 octobre 2025

3 min de lecture

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This relatively safe children's disease is extremely serious in adults and can turn into a real tragedy if it infects a pregnant woman. Because of this, it is very important to catch the symptoms and stop the spread of the virus.

Points clés

This relatively safe children's disease is extremely serious in adults and can turn into a real tragedy if it infects a pregnant woman.
What kind of disease is it?
Why is rubella especially dangerous for pregnant women?

Pour qui

Ceux qui explorent Bacterial and viral infections à travers rubella, infectious diseases.

Pourquoi c'est important

Cet article vous aide à vous orienter rapidement, puis à passer à une collection ou une série si vous souhaitez aller plus loin.

Auteur de l'article

Dr. Anastasia

Infectious disease doctor

What kind of disease is it?

It is a very contagious viral disease, the causative agent of which is the Rubella virus, and it is transmitted through airborne droplets. The incubation period lasts from 12 to 23 days, with the patient being contagious one week before and one week after the appearance of the rash.

Why is rubella especially dangerous for pregnant women?

Infection with rubella in the first and early second trimester of pregnancy can be a big issue. The disease causes severe malformations in the fetus and can lead to a frozen pregnancy. And in later gestational periods from 20 weeks and on, the mother needs to do an ultrasound, consult with an infectious disease specialist, neonatologist, and geneticist, and decide whether the pregnancy can be saved.

If the baby is born with SVC (congenital rubella syndrome), it can be infectious for up to two years. When planning a pregnancy, you should get tested for antibodies to the Rubella virus beforehand. If a woman has not had rubella before, she should be vaccinated 6 months before conception, after which a lifelong immunity is formed.

What are the symptoms of rubella?

A characteristic symptom of rubella is a small rash (pale pink or red) all over the body, except on the palms of the hands and feet. It is especially pronounced on the bends of the elbows and under the knees, and possibly even on the palate. It is often accompanied by itching.

After about three days, the rash disappears. In children, the rash is the first sign by which the disease can be identified — the other symptoms appear later and are not as pronounced as in adults. The temperature typically does not exceed 98.6 °F . In adolescents and adults, in parallel with the rash, the temperature rises to 102.2 °F , lymph nodes increase, cough, and a strong runny nose begin, and the person feels much worse.

What is rubella sometimes confused with?

Rubella is not always easy to identify, because the rash and fever that are characteristic of the disease can also occur with other diseases, including the following:

Measles: a very dangerous disease that is often confused with rubella. With rubella, the rash is less severe, goes down more quickly, and the fever is not as high as with measles.
Scarlet fever: a bacterial infection accompanied by rashes in the armpits, groin, and other natural folds. Plaque builds up on the tongue, the tonsils become inflamed, and the temperature rises.
Pseudotuberculosis: a dotty rash appears in the form of small nodules and lymph nodes become enlarged.
Roseola: sudden exanthema or fever caused by herpes type 6. High fever, sore throat, cough, enlarged lymph nodes, and sometimes a skin rash appear. The rash is not itchy and lasts for several hours to a day.
Allergy: after contact with an allergen a skin rash appears, but there may be no other symptoms.

When is hospitalization necessary?

Rubella is very contagious. If a person is treated at home, he or she must be isolated from other family members who have not previously been sick or vaccinated. If this is not possible, the person will be admitted to a hospital and see infectious disease doctors.

Emergency hospitalization is necessary for the following situations:

The disease is severe in a child under 5 years of age
Severe intoxication and high fever, which can not be brought down
Development of complications
Exacerbation of chronic diseases caused by rubella

It is easy to catch rubella when communicating with a person who has the incubation period of the disease, as he or she may not even suspect the presence of the disease. Therefore, the only reliable way to protect yourself and your loved ones is a timely vaccination, which will provide lifelong protection against the virus.

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