The flu typically lasts for 5 to 7 days after symptoms appear, which is usually 1 to 4 days after exposure to the virus.
Here's a more detailed breakdown:
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Incubation Period: The time between exposure to the flu virus and the start of symptoms is usually 1 to 4 days.
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Symptom Duration: The actual illness, characterized by symptoms like fever, cough, sore throat, body aches, and fatigue, generally lasts for 5 to 7 days.
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Variations in Duration:
- Flu Shot Impact: Individuals who have received a flu vaccine may experience a shorter duration of symptoms or less severe symptoms.
- Individual Differences: Some people may experience symptoms for a longer period.
- Post-Flu Fatigue: Even after the primary symptoms resolve, lingering fatigue is common.
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Contagious Period: People with the flu are most contagious in the first 3-4 days after their illness begins. However, some otherwise healthy adults may be able to infect others beginning 1 day before symptoms develop and up to 5 to 7 days after becoming sick. Some people, especially young children and people with weakened immune systems, might be able to infect others for an even longer time.
While the flu typically resolves within a week, individual experiences can vary depending on factors such as vaccination status and overall health. If symptoms are severe or persist beyond a week, consult a healthcare professional.
