Austin, Texas – The Texas Department of State Health Services (DSHS) reported that three out of nine human cases of West Nile virus in Texas have developed the more severe form of the disease known as West Nile neuroinvasive disease, showing concerning symptoms such as high fever, tremors, muscle weakness, and paralysis.
Symptoms of West Nile neuroinvasive disease can range from headaches and neck stiffness to coma and convulsions, requiring specialized treatment such as hospitalization, intravenous fluids, and respiratory support to prevent secondary infections, according to the World Health Organization.
DSHS revealed that 20% of those infected might only experience mild symptoms known as West Nile fever, while the remaining 80% may not show signs of illness at all. However, about 1 in 150 individuals infected with West Nile virus could develop the more serious neuroinvasive disease, which targets the brain and spinal cord.
The incubation period for West Nile virus in humans ranges from two to 14 days. Mild symptoms typically last a few days, but severe cases can extend to weeks or months, with potential permanent neurological effects. In rare cases, death can occur, with a fatality rate of approximately 10% for those experiencing the severe form of the disease, as noted by the Centers for Disease Control and Prevention.
This recent spike in severe West Nile virus cases highlights growing concerns about mosquito-borne illnesses and the need for increased public awareness and protection measures to mitigate the spread of such diseases. Health authorities continue to urge individuals to take precautions, such as using mosquito repellent, wearing protective clothing, and eliminating standing water sources to reduce mosquito breeding grounds. It is essential to stay vigilant and informed to prevent the further spread of West Nile virus and other mosquito-borne diseases in the community.