jiggers

Jiggers can refer to two distinct things commonly encountered in everyday language. One sense is a bar measuring device used to portion spirits for cocktails. A jigger is typically a small metal or plastic cup with two measuring sides; capacities vary, but two-sided models commonly offer about 1.0 and 1.5 US fluid ounces (roughly 30 ml and 45 ml), while metric versions often provide 25 ml and 50 ml. Jiggers may be made of stainless steel, copper, or other materials and are designed to provide consistent pours, either used directly or in conjunction with a shaker. They are distinct from a plain shot glass and are a standard tool in professional bartending and home mixing.

The other common use of the term jigger refers to a parasitic insect, the sand flea Tunga penetrans, which causes tungiasis. The female flea penetrates the skin, typically on the feet or toes, and enlarges as it remains embedded, with a portion protruding above the surface. The resulting lesion can be painful and itchy and may become secondarily infected. Diagnosis is usually clinical, based on the appearance of the embedded parasite and surrounding tissue. Treatment involves safe removal of the parasite with sterile instruments, followed by wound care; antibiotics may be used if a secondary infection develops. Prevention focuses on reducing exposure to contaminated soil and improving living conditions, including wearing footwear in endemic areas and employing environmental controls. The parasite is found in tropical and subtropical regions of Africa, the Caribbean, and parts of South America and remains a public health concern in underserved communities.