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This technology includes a repository of unique Enterobacteriaceae isolates for various therapeutic and diagnostic uses:

Enterobacter cloacae (Known Acquired Resistance: NDM-1) – Strain 0038

Klebsiella pneumoniae (Known Acquired Resistance: CTX-M-14) – Strain 0079

Citrobacter freundii (Known Acquired Resistance: KPC-2) – Strain 0116

Escherichia coli (Known Acquired Resistance: NDM-1) – Strain 0118

Klebsiella pneumoniae (Known Acquired Resistance: NDM-1) – Strain 0148

Escherichia coli (Known Acquired Resistance: NDM-5) – Strain 0150

This technology includes a real-time polymerase chain reaction (PCR) assay using hydrolysis probe (TaqMan®) chemistry which was developed for detection and type-specific identification of human adenovirus type 4 (HAd4) genomic DNA in clinical specimens. The assay uses unique oligonucleotide primer and probes designed to conserved regions of the HAd4 hexon protein gene. Assay reagents and amplification conditions were optimized and sensitivity and specificity characteristics determined with DNA extracts from multiple HAd4 laboratory strains and other respiratory viral pathogens.

This technology includes Streptococcus pneumoniae isolates collected through CDC’s Global Strain Bank project with particular serotypes. They were collected as part of routine clinical and surveillance activities and have a wide variety of uses including research, diagnostic, and the development of therapeutics.

This technology includes mycoplasma-free PV (isolated in 1882) and SAD/ERA (isolated in 1935) virus stock for rabies vaccine development. Rabies virus causes a nearly uniformly fatal disease, but can be prevented by timely vaccination. Two of the most common rabies virus vaccine strains are PV and SAD/ERA, both of which have had extensive passaging in both animals and subsequently cultivation in cells. The rabies vaccine virus stocks stored at CDC are heavily contaminated by mycoplasma.

This technology includes a new reverse genetics-based approach that generates Crimean-Congo hemorrhagic fever virus (CCHF) viral replicon particles (CCHF VRPs) to be developed into a vaccine for CCHFV. With mortality rates as high as 80% and with no FDA-approved vaccines or therapeutics, CCHFV is considered a dangerous emerging human pathogen. Unlike transcriptionally competent virus like particles (tc-VLPs), that only include CCHFV virus proteins and minigenome RNA, VRPs undergo one full round of replication closely mimicking authentic viral replication.

Summary:

The National Cancer Institute (NCI) seeks licensees to further develop novel exonuclease VII (ExoVII) inhibitors as antibiotic adjuvants for enhancing the efficacy of quinolone antibiotics, particularly in quinolone-resistant bacterial infection.   

This technology includes a novel minigenome assay for arenaviruses that allows for high-throughput screening (HTS) of potential antiviral compounds. To complement to minigenome assay, we have also developed a technique to generate recombinant arenaviruses expressing a reporter protein to allow to HTS of antiviral compounds at BSL-4. This allows for confirmation of potential hits identified by the initial minigenome screen. Human infections with some Arenaviruses such as Lassa (LASV) and Junin (JUNV) virus can result in viral hemorrhagic fever (VHF) disease.

This technology includes an updated North American Lineage H7 (N.A H7) real-time RT-PCR assay is designed for specific detection and characterization of North American lineage of A/H7 influenza viruses. Since 1995, poultry infection with N.A lineage influenza A/H7 viruses has been greatly increasing. The outbreaks of N.A A/H7 viruses in poultry as well as wild birds occurred many times in Canada, Mexico and USA; meanwhile a number of human infection caused by N.A A/H7 viruses have been confirmed following exposure to infected poultry.

This technology includes an optimized influenza A/H5 subtyping real-time RT-PCR assay for detection and characterization of Asian lineage A/H5N1 viruses. The highly pathogenic avian influenza (HPAI) A/H5N1 viruses, first isolated in human in 1997, have spread among birds over seventy countries on three continents. In 2014 a novel reassortant HPAI A/H5N8 virus has been detected in poultry in Asia, Europe, As well as Canada and USA. In addition, genetic reassortment of this virus with circulating avian influenza viruses has resulted in the novel viral combinations.

This technology includes isolate of Middle East respiratory syndrome coronavirus (MERS-CoV) for antiviral and diagnostic development. The isolate was confirmed by full genome sequencing and further characterized by serologic and molecular testing and electron-microscopical studies. This is the first MERS-CoV strain isolated from a US imported case of MERS.