The term '''vesicular''' refers to a medical condition "characterized by small elevations of the [[skin]] containing fluid", more commonly known as blisters.<ref>http://www.cdc.gov/vaccines/about/terms/glossary.htm#v</ref>
+
The term '''vesicular''' refers to a medical condition "characterized by small elevations of the [[skin]] containing fluid", more commonly known as blisters.<ref>https://www.cdc.gov/vaccines/about/terms/glossary.htm#v</ref>