Development of Pneumococcal Vaccines

This technology includes 8 novel strains of the species Streptococcus mitis, Streptococcus oralis, and Streptococcus infantis for vaccine or probiotic development. The capsular biosynthetic genes from each of these strains are highly related to pneumococcal counterparts encoding 5 capsular serotypes. All 8 of these non-pneumococcal strains were recovered from nasopharyngeal (NP) or oropharyngeal (OP) specimens.

Streptococcus pneumoniae Invasive and Non-invasive Clinical Isolates for Various Diagnostic and Therapeutic Uses

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.

Mycoplasma-free PV and SAD/ERA Virus Stocks for Rabies Vaccine Manufacturing

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.

Crimean-Congo Hemorrhagic Fever Virus (Nairovirus) Replicon Particles System-based Vaccine Candidate

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.

Novel Human Rotavirus Vaccine Strains and Diagnostics

This technology includes a vaccine for immunizing against different strains of rotavirus. Rotavirus is a highly contagious virus causing severe diarrhea in children and can be fatal. Due to various circumstances, the number of available, efficacious vaccines for rotavirus is declining at a time when infections remain a serious worldwide problem. This technology meets the need for vaccines against human rotavirus A strains of both common and less common types.

Dengue Virus Type 2 Isolates for Development of Diagnostics, Antivirals, and Vaccinations

This technology includes isolates of the Dengue Virus (type 2) which can be used to develop diagnostic tests, antivirals and vaccinations. These isolates are from Puerto Rico DENV-2 and have complete whole genome sequencing completed. Additionally, these isolates represent current stains of Dengue Virus which are circulating in the Caribbean.