Multivalent Vaccines for Rabies Virus and Filoviruses

No vaccine candidates against Ebola virus (EBOV) or Marburg virus (MARV) are nearing licensure and the need to develop a safe and efficacious vaccine against filoviruses continues. Whereas several preclinical vaccine candidates against EBOV or MARV exist, their further development is a major challenge based on safety concerns, pre-existing vector immunity, and issues such as manufacturing, dosage, and marketability. The inventors have developed a new platform based on live or chemically inactivated (killed) rabies virus (RABV) virions containing EBOV glycoprotein (GP) in their envelope.

Small-Molecule Inhibitors of Human Galactokinase for the Treatment of Galactosemia and Cancers

Lactose, found in dairy products and other foods, is comprised of two simple sugars, glucose and galactose. In galactosemia, where galactose is not properly metabolized, build-up of toxic compounds, such as galactose-1-phosphate, can lead to liver disease, renal failure, cataracts, brain damage, and even death if this disorder is left untreated. Currently, the only treatment for galactosemia is elimination of lactose and galactose from the diet, but in some cases this is not sufficient to avoid long-term complications from the disorder.

Glucocerebrosidase Non-inhibitory Chaperones for the Treatment of Gaucher Disease, Parkinson's Disease, and Other Proteinopathies

Gaucher disease is a rare lysosomal storage disease that is characterized by a loss of function of the glucocerebrosidase (GCase) enzyme, which results in a decreased ability to degrade its lipid substrate, glucocerebroside. The intracellular build up of this lipid causes a broad range of clinical manifestations, ranging from enlarged spleen/liver and anemia to neurodegeneration. In Gaucher disease, the loss of GCase function has been attributed to low levels of the protein in the lysosomal compartment, resulting from improper GCase folding and transport.

Parvovirus B19 Vaccine

Parvovirus B19 (B19V) infection causes fifth disease, a disease characterized by rashes to the face and other parts of the body that primarily affects children. However, adults can also develop fifth disease and it can lead to more severe conditions. Patients that are immunocompromised, such as those who are HIV infected, organ transplant recipients, and cancer patients, can be particularly susceptible to more severe outcomes from B19V infection. Infection can also cause anemia and in pregnant women, it can lead to hydrops fetalis.

Safer Attenuated Virus Vaccines with Missing or Diminished Latency of Infection

This technology describes recombinant viruses that have weakened ability to establish and/or maintain latency and their use as live vaccines. The viruses have one or more genetic mutations that allow for continued replication but that inhibit latency. The vaccine materials and methods for their construction are exemplified with the virus that causes chickenpox and whose latent infection results in shingles, a condition that affects up to an estimated 1 million people per year in the United States alone. Additionally, there are veterinary applications of this technology.

Use of Vitronectin as a Biomarker for the Detection of Dengue Hemorrhagic Fever

Dengue hemorrhagic fever (DHF) is a severe, potentially deadly infection spread by mosquitos. CDC scientists have identified vitronectin as an important biomarker of DHF. They have shown vitronectin is significantly reduced in DHF and severe dengue infections when compared to dengue non-hemorrhagic fever patients. Presently, DHF is established by assessing antibody concentrations and other rule-of-thumb criteria, but often these assays can be difficult to interpret and lead to false conclusions.

Multiplex Assay for Detection of Dengue Virus

Dengue virus (DENV) is the cause of dengue illness (dengue fever, dengue hemorrhagic fever, and dengue shock syndrome). CDC researchers have developed a RT-PCR multiplex assay that, prior to sero-conversion, selectively detects dengue virus in biological or other fluid media, such as whole blood, plasma, or serum. The primers and probes from this assay are sufficiently specific to amplify and detect all four DENV serotypes. This FDA-approved technology may provide an improved method for rapid and accurate serotyping of dengue virus in clinical and research settings.

CDC Mosquito Trap for Control and Surveillance of Mosquitoes Including Carriers of Zika & Other Viruses

Mosquitoes are responsible for spreading many viruses that can make people sick, including dengue, Zika, chikungunya, yellow fever, and more. The Centers for Disease Control and Prevention's (CDC's) new autocidal gravid ovitrap (AGO) mosquito trap is an inexpensive, simple-to-assemble, and easy-to-maintain trap that targets female mosquitoes looking for a place to lay eggs. The current trap model stands 18 inches (45cm) tall and is made of a 5-gallon (18L) bucket. The AGO trap's unique design lures mosquitoes by using water and an all-natural, organic hay attractant.

Nucleic Acid Amplification Technique for Rapid Diagnostic Analysis

CDC researchers developed a simple target-specific isothermal nucleic acid amplification technique, termed Genome Exponential Amplification Reaction (GEAR). The method employs a set of four primers (two inner and two outer). The outer primer pair targets three specific nucleic acid sequences at a constant 60°C, while the inner pair of primers accelerates and improves the sensitivity of the assay. The GEAR technique is an improvement over loop-mediated isothermal amplification (LAMP) in three ways.