By NewsDesk @infectiousdiseasenews
In a follow-up on the human West Nile virus (WNV) situation in the Las Vegas/Southern Nevada area shows that four additional cases have been report in the past two days.
On Tuesday, the Southern Nevada Health District reported three additional cases and Wednesday one more case was reported.
This brings the total to 16 human cases this year, with 11 having had the more serious, neuroinvasive form of the illness.
Arizona continues to report some 75 percent of the human WNV cases in the United States and according to the Arizona Department of Health has reported a total of 100 confirmed and probable cases and one fatality, nearly all the cases in Maricopa County.
Nearly 75 of the cases showed a neuroinvasive clinical presentation.
West Nile virus was first detected in the United States in 1999.
The majority of people infected with West Nile virus have no symptoms or only mild illness. Most individuals who have symptoms will experience “flu-like” illness, including fever, headache, body aches, swollen glands, and muscle weakness. Symptoms usually last for a few days or weeks. In some cases, West Nile virus can cause more serious conditions including encephalitis (an inflammation of the brain) and meningitis (an inflammation of the linings of the brain and spinal cord). Signs of more serious disease can include high fever, headache, confusion, disorientation, seizures, and coma.