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Nielsen BioSciences announce the launch of SPHERUSOL® (Coccidioides immitis Spherule-Derived Skin Test Antigen), a skin test that provides valuable data to physicians managing Valley Fever infections. SPHERUSOL has been approved by the Food and Drug Administration (FDA) as the only skin test to detect an immune response to the fungus Coccidioides, or "cocci," in patients with history of the disease.
Valley Fever is a serious infection that usually affects the lungs and is caused by inhaling airborne spores of the cocci fungus, which grows in dry desert soil of the western United States from Washington to Texas, with the bulk of cases occurring in Arizona and California. Until now, tests available to physicians for Valley Fever have been limited to blood tests, X-rays, cultures and biopsies, none of which provide information about the cellular immune response, which is comprised of disease-fighting cells responsible for overcoming the disease.
"SPHERUSOL fills critical gaps in the current testing of Valley Fever," says Tom Carpenter, DVM, PhD, senior vice president and chief development officer of Nielsen BioSciences. "With SPHERUSOL now broadly available, physicians have access to an important new tool to further inform their treatment decisions and incorporate into their standard of care of patients with this fungal disease."
Of the estimated 150,000 people per year who become infected with the Valley Fever fungus, 40 percent will develop symptoms, including fever, cough, chest pain, headaches, night sweats, or rashes. Diagnosis is often delayed for months as symptoms can be confused with the flu or bacterial pneumonia. The average patient misses a month of work or school. In severe cases, the fungal infection spreads from the lungs to other parts of the body, such as the central nervous system (brain and spinal cord infection), skin, bones and joints, can have life-long consequences and be life-threatening.
"The information SPHERUSOL provides is important for tracking patients' active infections and is critical to determining the urgency of care required for each individual. Knowing a patient's skin test status helps me in managing my patients with Valley Fever," says pulmonologist and author Craig Rundbaken, DO, FACOI, FCCP, founder of the Arizona Institute of Respiratory Medicine and Valley Fever Clinic, in Sun City West, Ariz.
Introduction of a new test for Valley Fever was also noted by U.S. House Majority Leader Kevin McCarthy (R-CA) and U.S. House Representative David Schweikert (R-AZ), who serve as the co-chairs of the bipartisan Congressional Valley Fever Task Force and are from the two states where the disease is most prevalent.
"As new advancements are made, the fight against Valley Fever continues to move forward. We must continue to work to improve the way we treat and prevent this disease," says McCarthy.
"Valley Fever has silently affected entire communities in the southwest, including our families, friends, and even our beloved pets," says Schweikert. "I am honored to be working with both our local businesses and constituency to help expand our efforts. I see new developments, such as the introduction of the SPHERUSOL skin test, as vital steps forward in the fight against Valley Fever."
While Valley Fever is viewed as a regional disease of the desert west, the impact on the lives and economies of the region is substantial. Nationally in 2013 as many people were reported diagnosed with Valley Fever as were with the better-known disease tuberculosis.4
Source: Nielsen BioSciences