Brucellosis

Undulant fever, also known as brucellosis, is an infection caused by bacteria that spread to humans mainly through contact with animals or the consumption of unpasteurized dairy products.

Common symptoms: Its hallmark is a fever that rises and falls throughout the day, accompanied by sweating, muscle and joint aches, fatigue, and a general feeling of being unwell.

Common causes: It is linked to exposure to farm animals or their products, so certain occupations and dietary habits increase the likelihood of contact with the bacteria.

Which specialist treats it? The infectious disease specialist is the professional who studies this type of infection; if there is a prolonged fever of unclear origin, especially with a history of contact with livestock, it's worth being evaluated by one.