Can you get reinfected with viral influenza after recovering from it?

Sep 27, 2022 Source: Cainiu Health

Dr. Guo Xiheng

Introduction

It is possible to be reinfected after recovering from viral influenza. Viral influenza is a common illness that includes the common cold, influenza (flu), and viral pharyngitis. It primarily spreads through the air or by hand contact via the nasal passages. If a person's immune system is weak and they do not take proper preventive measures or stay warm, they may contract influenza again.

It is still possible to become reinfected after recovering from viral influenza. Viral flu is a common illness that includes the common cold, influenza (flu), and viral pharyngitis. It primarily spreads through the air or hand contact, entering the body via the nasal passages. Even after successful treatment, individuals may still be susceptible to reinfection.

1. Low Immunity

Patients whose immune systems have been weakened by the flu may become reinfected if they fail to take preventive measures or maintain proper warmth after recovery.

2. Different Pathogens

After recovering from the flu, the body develops antibodies against the specific virus strain, offering protective immunity. If the same virus attempts to invade again in the short term, the immune system quickly recognizes and eliminates it, preventing reinfection. However, there are many strains of influenza viruses, and even the same strain can mutate. Therefore, patients remain at risk of infection from different or mutated virus strains.

After recovering from a cold, the body remains relatively weak, so personal protection is essential to prevent reinfection or cross-infection. Adequate rest is important; strenuous exercise and excessive fatigue should be avoided. Keeping warm is crucial—adjust clothing appropriately during seasonal changes or temperature fluctuations to avoid chilling, which could worsen symptoms. Diet should be light and nutritious, emphasizing fresh fruits and vegetables rich in vitamins. Spicy, greasy, raw, or cold foods should be avoided. One to two months before the annual flu season begins, getting a flu vaccine is recommended, as it effectively reduces the likelihood of influenza virus infection.

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