Astrovirus is a virus that causes gastroenteritis—an infection of the stomach and intestines—mostly in young children, the elderly, and people with weakened immune systems. Though it typically leads to mild illness, it’s still important to understand and manage it properly.
What Is Astrovirus?
Astrovirus is named for its star-like shape under the microscope (“astro” means “star”). It’s one of the leading causes of viral diarrhea in children worldwide, after rotavirus and norovirus.
How Does It Spread?
Astrovirus spreads mainly through the fecal-oral route, which means it can be transmitted by:
•Eating food or drinking water contaminated with the virus
•Touching contaminated surfaces or objects
•Close contact with an infected person
It’s most common in places like schools, daycare centers, and nursing homes.
Symptoms of Astrovirus Infection
Symptoms usually appear 2–3 days after infection and include:
•Watery diarrhea (most common)
•Mild fever
•Nausea
•Vomiting
•Stomach pain
•Headache (sometimes)
The illness is generally mild and lasts about 2 to 4 days.
Who Is Most at Risk?
•Infants and young children
•Elderly individuals
•People with weakened immune systems
•Those in crowded or unsanitary living conditions
Diagnosis and Treatment
Astrovirus is usually diagnosed with a stool test, especially during outbreaks or in severe cases.
There is no specific treatment for astrovirus. Most people recover with:
•Rest
•Plenty of fluids to prevent dehydration
•Electrolyte solutions for children or older adults
Antibiotics don’t work because it’s a viral infection.
How to Prevent Astrovirus
•Wash hands frequently, especially after using the toilet or before eating
•Clean and disinfect surfaces, especially in kitchens and bathrooms
•Ensure safe food and water handling
•Keep sick individuals isolated when possible, especially in group settings
Final Thoughts
Astrovirus infections are usually mild, but they can still cause discomfort and dehydration, especially in children. Practicing good hygiene and sanitation is the best way to prevent it. If symptoms are severe or last more than a few days, it’s best to consult a doctor.
