How Do Vaccines Work, Exactly?
Vaccines train your immune system to recognize and fight specific disease-causing organisms known as pathogens, which include viruses and bacteria. They then leave behind memory cells that can instigate a defense should the pathogen return. By tailoring the body's own immune defenses, vaccines provide protection against many infectious diseases, either by blocking them entirely or reducing the severity of their symptoms.
| You can update your preferences on the type of emails you want to receive from us Mailing Preferences. If you wish to opt out of all type of emails, click Unsubscribe. Report Abuse |
0 件のコメント:
コメントを投稿