Real-Time RT-PCR Detection of Scrub Typhus Total Nucleic Acid Assay with High Sensitivity and Specificity

Scrub typhus is a bacterial disease caused by Orientia tsutsugamushi (O. tsutsugamushi or Ots) that is spread to people through bites of infected chiggers (larval mites). The most common symptoms can include fever, headache, body aches, and sometimes rash. Severe illness can lead to organ failure and bleeding which can be fatal if left untreated. Most cases of scrub typhus occur in Asia Pacific countries, however, recent reports document establishment in the Arabian Peninsula, Chile, and possibly Kenya.

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.

Novel Method and Kit Using Monoclonal Antibodies for More Sensitive Detection of Dengue Virus

Following primary dengue virus (DENV) infection, non-structural protein 1 (NS1), a dengue-specific glycoprotein, is present in blood and is easily detected by various assays. However, for any infection thereafter (secondary infection), bioavailability of the glycoprotein greatly reduces sensitivity of DENV detection. Since secondary DENV infection is a risk factor for developing hemorrhagic fever, there is increasing need for more sensitive detection at this stage.

A Bias-free Sampling and Collection Trap for Resting Mosquitoes

This CDC developed collection device is a small (approximately 1 cubic foot) open-sided container that attracts mosquitoes seeking a daytime resting location. The container is dark-colored and constructed of molded wood-fiber or recycled, high-density plastic. Mosquitoes that enter the dark space of the container are aspirated through a battery-powered fan into a collection receptacle. The receptacle is especially attractive to Culex and Anopheles mosquitos' vectors of West Nile Virus and malaria parasites, respectively.

Use of Detector Response Curves to Optimize Settings for Mass Spectrometry

This CDC developed optimization technology allows one to characterize the behavior of the coefficient of variation (CV) for a range of mass spectrometer machine settings. Surface-enhanced laser desorption/ionization (SELDI) and matrix-assisted laser desorption/ionization (MALDI) are used for the early detection of numerous diseases, for example cervical cancer . A critical step in the analytical process is the optimization of experiment and machine settings to ensure the best possible reproducibility of results, as measured by the CV.

Entangling/Entrapping Synthetic Setae for Control of Insects and Other Pests

In nature, some beetle larvae possess specialized barbed hastate setae that serve as an entanglement defense mechanism and incapacitate other insects. CDC researchers have developed synthetic setae for control and entrapment of insects and other pests. While smaller synthetic setae can trap mosquitoes and small insects, larger “macro” setae can be used for entrapment of bats, rodents, etc. Once used, the setae can be "reset" by a vigorous shaking of the fabric.

A Simple Colorimetric Assay for Anti-malarial Drugs Quality Assurance and Rapid, On-site Counterfeit Detection

This CDC assay aims to lessen the anti-malarial drug counterfeiting epidemic by testing for the artemisinin-type drugs (the active compound), through the use of a simple, inexpensive colorimetric test. Poor quality and counterfeit drugs pose an immediate threat to public health and undermine malaria control efforts, resulting in resistant-parasites and invalidates effective compounds, i.e.

Portable Laser-Operated Counterfeit Drug Identifier (CoDI) for Tablets

Counterfeit drugs (also known as “fake or falsified medicines”) have become a major world-wide public health concern. Falsified medicines may contain toxic substances, the wrong active ingredients, suboptimal amounts of active ingredients, or no active ingredients at all. CDC researchers developed a portable (handheld), battery-operated, and relatively inexpensive device that non-trained personnel can use quickly to evaluate a particular branded tablet for authenticity.

Automated Microscopic Image Acquisition, Compositing and Display Software Developed for Applied Microscopy/Cytology Training and Analysis

Micro-Screen is a CDC developed software program designed to capture images and archive and display a compiled image(s) from a portion of a microscope slide in real time. This program allows for the re-creation of larger images that are constructed from individual microscopic fields captured in up to five focal planes and two magnifications. This program may be especially useful for the creation of data archives for diagnostic and teaching purposes and for tracking histological changes during disease progression.