Hantavirus Pulmonary Syndrome (HCPS) is a serious respiratory illness caused by the Orthohantavirus genus, primarily affecting regions in North and South America. The disease can manifest with flu-like symptoms, making early diagnosis challenging. Once severe symptoms develop, patients can experience rapid deterioration, leading to respiratory failure within 24-48 hours. The virus damages blood vessels, particularly in the lungs, triggering fluid leakage and pulmonary edema, which significantly increases mortality rates to 30-50%. Currently, there is no specific antiviral treatment, making supportive care essential, often requiring intensive care unit (ICU) admission and mechanical ventilation. Preventive measures, including rodent control and safe cleaning practices, are vital to reduce infection risk, as human-to-human transmission is rare. Awareness of HCPS is crucial for timely recognition and treatment, ultimately improving survival chances.