Tests & Screenings

Most infectious disease diagnoses can be confirmed with simple, non-invasive tests. Here are some of the commonly used tests used to identify infectious diseases.


For certain infectious diseases, such as those caused by a fungi, a tiny sample of tissue may be obtained for testing.

Blood Tests

A sample of your blood is obtained by inserting a needle into a vein, usually in your arm, and tested for the presence of the suspected disease, such as HIV.

Spinal Tap (Lumbar Puncture)

During this procedure, a doctor will draw a sample of your cerebrospinal fluid through a needle carefully inserted between the bones of your lower spine.

Throat Swabs

Samples moist areas of your body, such as the throat, may be obtained with a sterile swab and tested in a lab.

Urine and Stool Tests

This painless test requires you to urinate or defecate into a container. The sample is then tested for the presence of disease, such as parasites and other organisms in the stool.