Symptoms
In a person with a healthy immune system
When first infected with
toxoplasmosis, most people don't get sick. A few
people have mild flu-like symptoms, which can last as long as several months.
This is why people rarely know whether or when they have had toxoplasmosis.
Symptoms can include:
- Swollen glands.
- Muscle
aches.
- Fatigue.
- Fever.
- Sore
throat.
- Skin rash.
In a newborn
Most infected newborns have no symptoms at birth. But without
treatment, some can develop eye or brain damage that ranges from mild to
severe. Blindness can develop up to 20 years after birth, but this is
rare.
Some infected newborns have severe symptoms at birth, including:
- Eye pain, vision problems, or
blindness.
- Brain damage, leading to
mental retardation and occasionally seizures.
In a person with a weak immune system
A person who has a very weak immune system (weakened by HIV
infection, organ transplant medicines, or
lymphoma) can develop
life-threatening toxoplasmosis. Antibiotic therapy is
often used to prevent this from happening. Severe infection requires aggressive
treatment.
In very rare cases, otherwise healthy people who get
toxoplasmosis can have severe symptoms related to the brain, eyes, lungs, or
heart.3