1. What is rubella?

Rubella is a viral infectious disease caused by the rubella virus. The infection spreads mainly by airborne droplets (during coughing, sneezing, speaking), less often by direct contact with the secretions of a sick person. Humans are the only reservoir and source of the virus.

Vertical transmission is also possible – from an infected pregnant woman to the fetus, which can lead to miscarriage, fetal death, or Congenital Rubella Syndrome (CRS).

The incubation period is usually 14–21 days (about 2–3 weeks). Most at risk are unvaccinated people or those without confirmed immunity, and especially: women planning pregnancy/pregnant women, people working with children, medical personnel, and travelers.

2. Symptoms of rubella

Most common symptoms include:

fine, macular rash (often starts on the face and neck),
swollen lymph nodes (especially behind the ears and on the neck),
low-grade fever or mild fever, weakness,
"cold-like" symptoms: runny nose, cough, sometimes conjunctivitis.

In children, rubella can be mild, and some infections may have few symptoms. In adolescents and adults, general malaise and joint pain/inflammation occur more often (especially in women).

Possible complications (rare but significant) include thrombocytopenia and encephalitis, and the most serious consequences concern infection in pregnancy – CRS (e.g., defects of the heart, hearing, and vision, low birth weight).

Urgent medical consultation is necessary when:

contact with rubella occurs in a pregnant woman or a person planning pregnancy,
neurological symptoms occur (severe headache, stiff neck, disturbances of consciousness),
signs of bleeding/petechiae appear or significant deterioration of condition.

3. Where does rubella occur?

Rubella occurs all over the world, but the risk of illness and outbreaks is greater where vaccination coverage is lower. WHO emphasizes that rubella remains a significant global problem, and CRS still affects a significant number of newborns.

This information is particularly important for:

travelers to regions with lower vaccination levels,
people visiting family abroad (VFR),
people planning pregnancy and their loved ones (due to the risk of CRS).

4. How to protect yourself against rubella?

A. General prevention

Avoid contact with people with rash and symptoms of infection.
If you suspect rubella: home isolation and special caution in contact with pregnant women.
Hand hygiene, ventilating rooms, "cough and sneeze" rules (into the crook of the elbow) – reduce transmission by droplets.

B. Vaccination

The most effective protection is MMR vaccination (measles-mumps-rubella) – live, attenuated vaccine.

For whom recommended:

all children according to the vaccination calendar,
adults without documented vaccinations/immunity, especially: women before pregnancy, travelers, medical personnel, people working with children.

Schedule (typically):

children: 2 doses (in Poland routinely 1st dose around 13–14 months, 2nd dose at school age – currently 6 years).
adults: in practice, missing doses are replenished; in people with higher risk (e.g., travel, work in health care), 2 doses at an interval of ≥ 4 weeks are often used.

Booster doses: after a full schedule, they are usually not routinely required – the key is that the cycle is complete. Duration of immunity: protection after vaccination is long-lasting (in practice many years, often treated as permanent).

Important notes:

MMR vaccine is not given in pregnancy and with severe immunodeficiencies,
after vaccination, it is recommended to delay getting pregnant for approx. 1 month (standard precautionary recommendation for live vaccines).

5. Summary

Rubella often proceeds mildly, but its greatest threat is complications – especially Congenital Rubella Syndrome, when the infection concerns a pregnant woman. MMR vaccination is the surest form of protection – especially for non-immunized people, travelers, people working with children, and women planning pregnancy (and their loved ones). Before traveling or planned pregnancy, it is best to perform vaccination at least 4 weeks earlier (and if 2 doses are needed – start appropriately earlier to keep the interval).