Pregnancy and prevention of infections with parvovirus B19

Parvovirus B19 is a small-sized virus which only infects humans. Transmission occurs via respiratory secretions (coughs, sneezes, spit or nasal mucus) from young children. It is a common, minor illness also known as fifth disease or megalerythema epidemicum. If a pregnant woman not previously immune is infected during pregnancy, there can be implications for the foetus.

Usually, the illness goes unnoticed or causes very vague symptoms (slight fever, headaches). When symptoms do occur, these usually appear in two phases: first, the face is affected, with red cheeks (making you look like you have been slapped on both cheeks), and then the rash spreads to the skin on the limbs and torso.
On rare occasions, joint pain can occur

Women are at risk if they come into contact with the virus for the first time while they are pregnant. However, the risk is low and varies depending on when during the pregnancy the virus is contracted. Have a discussion with your health professional (doctor, obstetrician, midwife, etc.).

​​​​​​​Yes, if you have never had the disease and don't have antibodies (seronegative).

Yes, if you come into contact with an infected individual, or if you are displaying clinical signs.

Avoid close contact with respiratory secretions from infected individuals.

Wash your hands regularly. As the virus can cause small outbreaks in community venues frequented by children, pay attention to information provided by educational staff.