How vaccines work

A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response.

 

These molecules are called antigens, and they are present on all viruses and bacteria. By injecting these antigens into the body, the immune system can safely learn to recognize them as hostile invaders, produce antibodies, and remember them for the future. If the bacteria or virus reappears, the immune system will recognize the antigens immediately and attack aggressively well before the pathogen can spread and cause sickness.

- Publichealth.org

Protect yourself and your loved ones against major diseases, Get Vaccinated

Precious Medical Centre

290 Orchard Road, Paragon Medical

#12-01, Singapore 238859

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