Nasopharyngeal Swab vs Nasal Swab: Comparing Methods
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swab is a small, often disposable, tool that is used to collect samples from a surface or a body cavity. In medical settings, swabs are typically used to collect samples of fluids or tissues from a patient's body in order to test for the presence of disease-causing organisms or other substances. This can help doctors diagnose and treat infections or other conditions. Swabs are often made of cotton or synthetic materials, and they may be attached to a handle or shaft for easy handling.