How long do botulism symptoms last?
Christopher Snyder
Updated on March 01, 2026
Depending on the severity of the case, recovery from botulism can take weeks, months, or even years. Most people who receive prompt treatment recover completely in less than 2 weeks. Some people feel tired and short of breath for years after surviving botulism.
Can botulism go away on its own?
When your case is mild, you may need weeks or months for a full recovery. It may take months or years to completely get over a very serious case. If the illness isn't treated, botulism can be life-threatening. But people recover in about 90% to 95% of cases.Can you have a mild case of botulism?
Some botulism patients may have mild illness without progression and may not require BAT; however, the clinical features that predict which patients will progress and should be treated with BAT are unknown.What are 2 symptoms of botulism?
Symptoms
- Difficulty swallowing.
- Muscle weakness.
- Double vision.
- Drooping eyelids.
- Blurry vision.
- Slurred speech.
- Difficulty breathing.
- Difficulty moving the eyes.
What are three symptoms of botulism?
Signs and symptoms of foodborne botulism include:
- Difficulty swallowing or speaking.
- Dry mouth.
- Facial weakness on both sides of the face.
- Blurred or double vision.
- Drooping eyelids.
- Trouble breathing.
- Nausea, vomiting and abdominal cramps.
- Paralysis.
Botulism, Causes, Signs and Symptoms, Diagnosis and Treatment.
How quickly does botulism set in?
How soon after exposure would symptoms develop? Symptoms generally begin 12-36 hours after eating contaminated food, but may occur as early as a few hours and as late as 10 days.What to do if you think you ate food with botulism?
Seek immediate medical care (call 911) if you suspect botulism food poisoning or if you, or someone you are with, have symptoms of difficulty breathing, abdominal pain or cramping, blurred or double vision, weakness (loss of strength), paralysis or inability to move a body part, vomiting, or drooping eyelids.Is botulism always fatal?
Incidence of botulism is low, but the mortality rate is high if prompt diagnosis and appropriate, immediate treatment (early administration of antitoxin and intensive respiratory care) are not given. The disease can be fatal in 5 to 10% of cases.Can you survive botulism poisoning?
Survival and ComplicationsOthers die from infections or other problems caused by being paralyzed for weeks or months. Patients who survive botulism may have fatigue and shortness of breath for years afterward and may need long-term therapy to help them recover.