Assays, arrays, and methods for distinguishing a bacterial infection from a viral infection are disclosed. The antibiotic crisis is in part driven by over prescription of antibiotics. There is a tendency, particular in pediatrics, to give an antibiotic even for viral infections. Thus, embodiments herein are directed to the problem of distinguishing a bacterial infection from a viral infection to reduce unnecessary antibiotic usage.

Disclosed are real-time insect surveillance sensor devices and methods that use a colorimetric readout for detecting insect disease vectors (such as mosquitoes which can transmit pathogens such as DENV, CHIKV, and ZIKV). The method involves an attractive or feeding solution combined with detector conjugates. The conjugate can specifically detect proteins present in insect saliva and/or proteins specific to mosquito-borne pathogens.

Transcriptional units encoding Zika virus (ZIKV) premembrane (prM) and envelope (E) proteins, which upon translation form Zika virus-like particles (VLPs), are described. Use of the transcriptional units and VLPs in three different ZIKV vaccine platforms is described. Immunoassay-based detection methods using ZIKV VLPs are described for the diagnosis of ZIKV infection.

Methods for rapidly confirming production of infectious viral vectors, for use in clinical grade personalized neo-antigen vaccines for subjects in need thereof, are provided.

The systems and methods contained herein are directed toward automated analysis of agglutination reactions to determine properties of materials, including viruses and vaccines thereto. Advanced digital imaging and processing techniques are used to determine the presence or absence of viruses or antibodies within a fluid sample. The systems and methods are versatile, and can be used to determine specific properties of biomaterials and viruses, such as titer value, concentration, genotype, phenotype, serotype, vaccine efficacy, viral resistance and other properties of relevance in the medical, research and development fields. Also provided are systems and methods of standardization, repeatability, and data storage and transmittal to reduce errors and subjectivity inherent to conventional assays characterized by human readers.

Antibodies and antigen binding fragments that specifically bind to ebolavirus glycoprotein and neutralize ebolavirus infection are disclosed. Nucleic acids encoding these antibodies, vectors, and host cells are also provided. The disclosed antibodies, antigen binding fragments, nucleic acids and vectors can be used, for example, to inhibit an ebolavirus infection in a subject.

The present invention relates to an antibody which specifically binds to the envelope glycoprotein of severe fever with thrombocytopenia syndrome virus (SFTSV), the pathogen of severe fever with thrombocytopenia syndrome (SFTS), and is used in order to effectively detect or diagnosis SFTSV and treat SFTS.

A system for providing immunoassay test results for multiple medical conditions, comprising a testing device having thereon an alignment target and having a plurality of immunoassay test strips, the plurality of immunoassay test strips each including a sample pad capable of receiving a biologic sample, a conjugate pad containing particles for conjugating with antibodies or antigens present in the biologic sample, and a membrane strip having a test line and a control line, wherein the test line and the control line are viewable, and a mobile device having a camera, a viewing screen, and a software application stored thereon, wherein the software application provides executable instructions to capture an image of the testing device, process an image to determine pixel count and line intensity of the test line of each of the plurality of immunoassay test strips, and present test results on the viewing screen.

A system that monitors particle motion behavior for point-of-care diagnostics is described. The system can include a sample testing unit configured to house a sample. The sample testing unit can include a plurality of motor structures configured for self-propulsion based on a presence or an absence of a target analyte in the sample and a plurality of beads configured to experience a motion behavior based on the self-propulsion of the plurality of motor structures. Each of the plurality of motor structures can include a catalytic motor-like micro/nanoparticle; and an attached functional material specific for the target analyte attached to the catalytic motor-like particle. The optical recording unit can include an optical arrangement configured to detect the motion behavior of the beads in the sample testing unit. The motion behavior can be indicative of the presence or the absence of the target analyte.

The present disclosure provides a method for quantifying a vaccine. The method includes the steps of: 1) providing a plurality of standard mixtures, each of the standard mixtures having a standard antigen and an aluminum based adjuvant; 2) mixing a stabilizing solution with the vaccine and each of the standard mixtures; 3) determining dosages of the standard antigens in the standard mixtures to establish a standard curve; and 4) determining a dosage of a target antigen in the vaccine according to the standard curve.