"Fog fever", also known as bovine respiratory disease (BRD) or shipping fever, is a common respiratory illness affecting cattle. This condition is characterized by respiratory distress and high fever, often caused by environmental stressors such as fog or shipping conditions. While "fog fever" is a commonly used colloquial term, there are alternative synonyms that can be used to describe this ailment. Terms such as respiratory distress syndrome, lung fever, and pneumonia can all be used to communicate the same condition. By utilizing these synonyms, veterinarians and cattle producers can effectively communicate the diagnosis and treatment options for this respiratory illness in cattle.