83 results about "Virus present" patented technology

A method of detecting viruses in a computer network 1 comprising intercepting data at at least one data transit node 4 of the network 1. The transit node 4 identifies which of the data is of a type capable of containing a virus and transfers the identified data to a virus scanning server 7 over the network 1. The identified data is received at the virus scanning server 7 which scans the data to identify viruses present therein. The server 7 subsequently acts in dependence upon the outcome of the virus scan.

Data in backup systems can be effectively protected against viruses, even if definitions for certain viruses are found after infected data have been backed up to a backup server. In one implementation, a combined filter that includes antivirus and replica filtering components can identify and process I / O system calls (e.g., including writes to files). If a virus is present, the antivirus component of the combined filter can mark the file and / or file write (and cleanse the file / file write), and pass that information to the replica component. If the file write is associated with a file to be backed up, the replica component can then pass along the antivirus filter's indications with a copy of the file write. The backup server can also identify that previous versions of the file stored at the backup server may have been infected, and can thus perform any appropriate actions.

A method of inactivating viruses, articles for inactivating viruses and methods of manufacture of such articles are disclosed. Singlet oxygen generating dyes are attached to a substrate. Upon exposure to light, singlet oxygen is generated to inactivate viruses present. In a preferred embodiment, more than one dye is used. If only one dye is used, acridine yellow G is particularly effective.

Generally, systems for air and water purification using unpowered charged sorbent mediums (3) which may include layered double hydroxide (LDH) (1) compositions, lignin (2), and methods of sorbing inorganic or organic material(s) onto such mediums, including anionic contaminants (10), cationic contaminants (11), non ionic organic contaminants (20), and even biological agents (7) such as bacteria or viruses present in liquids or gases.

The disclosed invention is a composition for and a method of treating a Flaviviridae (including BVDV and HCV), Orthomyxoviridae (including Influenza A and B) or Paramyxoviridae (including RSV) infection, or conditions related to abnormal cellular proliferation, in a host, including animals, and especially humans, using a nucleoside of general formula (I)-(XXIII) or its pharmaceutically acceptable salt or prodrug.This invention also provides an effective process to quantify the viral load, and in particular BVDV, HCV or West Nile Virus load, in a host, using real-time polymerase chain reaction (“RT-PCR”). Additionally, the invention discloses probe molecules that can fluoresce proportionally to the amount of virus present in a sample.

Disclosed herein are a sterilization method and a sterilization apparatus which are capable of exerting a sterilizing effect on all microorganisms or viruses and which are safe for a living body to be sterilized. The sterilization method includes releasing reactive particles onto microorganisms or viruses to fragment proteins contained in the microorganisms or viruses on condition that nucleic acids contained in the microorganisms or viruses are not disrupted. The sterilization apparatus releases air containing reactive particles that fragment proteins without disrupting nucleic acids to kill microorganisms or viruses present in a target.

Methods are disclosed for distinguishing whether an animal is experiencing a bacterial infection or a viral infection. One monitors breath taken from the animal over time to measure the relative amount of a first breath stable isotope to a second breath stable isotope therein over time. A quick change in the isotope ratios within several hours from the likely infection is indicative of a bacterial infection. A delayed change in the isotope ratios, followed by periodic repeated alterations in the ratios, is indicative of viral infection. The methods are particularly efficient when using cavity ringdown spectroscopy for the monitoring. They may be used for monitoring a patient already admitted to a hospital, or for monitoring a patient initially complaining of adverse symptoms, or for triage, or for collectively monitoring a population of animals.

A method of risk stratification for contagious disease is provided. The method performs a reverse transcriptase polymerase chain reaction (RT-PCR) test on a patient to determine the presence of a viral infection. The method next performs tests for the presence of antibody Immunoglobulin M (IgM) and Immunoglobulin G (IgG) assays. The method assigns the patient a level of readiness to return to society corresponding to the combination of the results of the qualitative RT-PCR, IgM, and IgG tests and quantitative IgG+ antibody testing. The levels of readiness to return to society may be verified by a QR code on a mobile device.

The present disclosure relates to compositions and methods for using a modified virus that infects a cell only if the virus presents a candidate antigen that binds with high affinity to a target antibody, thereby allowing for generation and identification of immunogens useful, for example, as vaccines.

The invention relates to a method for the selection and identification of at least on representative (interaction partner) from a plurality of peptide or protein molecules, which can specifically interact with at least one representative from a plurality of target molecules, forming a bond. The inventive method comprises the following steps: (a) a virus system consisting of a plurality of viruses, wherein each virus respectively presents at least on representative from the plurality of peptide or protein molecules on the surface thereof, is brought into contact with the plurality of target molecules (ligands) which are immobilized on the surface of a solid phase carrier such that they are position addressable in a two-dimensional grade; (b) unbound viruses removed from the surface thereof; and (c) the interaction partner is identified by detection and determination of the position of the bond between the immobilized ligand and the interaction partner presented by the virus with the aid of a marker-free detection method. The described method makes it possible to concentrate viruses presenting interaction partners by means of an optionally cyclic repetition of selection. Optionally, selected interaction partners are recombinantly expressed after identification of the coding nucleotide sequence.

The present invention generally relates to a molecular test of enterovirus, herpes simplex virus-1 and -2, and / or Varicella-Zoster virus, in order to identify patients with a viral infection, in particular a viral infection of the central nervous system. Accordingly methods and compositions are disclosed to determine the presence or absence of a viral pathogen in a biological sample comprising, wherein the target nucleic acids comprise the 5′ UTR of the enterovirus genome, UL29 of herpes simplex virus and gene 36 of Varicella-Zoster virus.

Generally, systems for air and water purification using unpowered charged sorbent mediums (3) which may include layered double hydroxide (LDH) (1) compositions, lignin (2), and methods of sorbing inorganic or organic material(s) onto such mediums, including an ionic contaminants (10), cationic contaminants (11), non-ionic organic contaminants (20), and even biological agents (7) such as bacteria or viruses present in liquids or gases.

Disclose herein is a method for diagnosing virus, comprising the steps of: (a) collecting a sample and lysing virus present in the sample; (b) treating the lysed sample with a specific protease to digest a protein in the sample into peptides; (c) measuring the masses of the peptides in the sample with a mass measurement device; and (d) comparing the masses of the peptides in the sample to the masses of peptides derived from known viral proteins digested with the same protease as used in step (b), thus identifying the protein from which the peptides of the sample were derived. Also disclosed is a system for diagnosing virus which can be used to carry out the above diagnostic method.

The invention provides a method for preparing recombination live vector vaccines for diseases of canid and / or feline based on an RNA (ribose nucleic acid) virus rescuing technique, which is characterized in that a recombination virus expression vector capable of expressing main protective antigens of diseases of the canid and / or the feline based on a reverse genetic manipulation system is established. A rabies virus is conjunctly transfected by the expression vector and assistant plasmids to copy a permissive host cell to rescue the recombination virus, so that multivalent live vector vaccines are prepared. The growth curve of the virus presents that the rescued maternal virus has no obvious difference from the growth kinetic of the recombination virus which expresses the protective antigen genes of main disease pathogens of the canid and / or the feline, and a foundation is established for successfully preparing gene recombination live vector vaccines of main diseases of the canid and / or the feline.

The invention discloses a file virus searching and killing method. The method comprises the following steps: locally searching and killing a file virus according to feature information of a file to besearched and killed; if the local searching and killing matching of the file fails, sending the feature information of the file to a cloud server, wherein the cloud server acquires searching and killing information corresponding to the feature information and feeds back the searching and killing information; if the searching and killing information is received within a preset duration, processingthe file according to the received searching and killing information. The invention further discloses a file virus searching and killing method, equipment and device and a computer storage medium. Bysending the feature information of the file to the cloud server to detect whether the file has viruses or not when whether the file is a virus or not cannot be searched and killed locally, the sending of a file body is avoided, so the time required for virus searching and killing is shortened, the virus searching and killing efficiency is improved, and the real-time performance of virus searchingand killing is realized.

Methods for the rapid detection of the presence or absence of BK virus in a biological or non-biological sample are described. The methods can include performing an amplifying step, a hybridizing step, and a detecting step. Furthermore, primers and probes targeting BK virus and kits are provided that are designed for the detection of BK virus.

A method of analyzing a sample possibly containing an HIV virus, including a) extracting viral RNA in a biological sample that possibly contains an HIV virus; b) reverse transcription of the RNA obtained of (a) and amplification with a first pair of primers to obtain an amplified product of reverse transcription including all or part of at least two successive genes of a genome of an HIV virus; and one or both of c) and d): c) sequencing the amplified product of (b) to establish a genotype of HIV virus present in the sample and identify mutations that may be present in the amplified product; d1) amplifying the product of (b) with a second pair of primers complementary to the first pair of (b) and capable of generating an amplification product that can be inserted by homologous recombination into a retroviral vector that is defective in a region corresponding to the amplified product; d2) homologously recombining the product of (d1) with the defective vector; d3) functionally analyzing the viral proteins coded by all or part of the at least two successive genes of the product of (d1); and d4) measuring replicating capacity of recombinant viruses of (d2) in the presence or in the absence of at least one active substance.

The invention discloses an anti-virus E-mail processing system and method. The anti-virus E-mail processing system comprises a virus detecting unit, a virus isolating unit and a virus processing unit, wherein the virus detecting unit is installed on a computer; the virus isolating unit is used for receiving virus detected information uploaded by the virus detecting unit and isolating the virus; the virus processing unit is used for receiving the virus detected information uploaded by the virus detecting unit and eliminating the virus. The anti-virus E-mail processing method comprises the following steps: a) detecting if the virus exists: utilizing a virus detecting module to detect if the virus exists in the E-mail when the E-mail is received by the computer; b) isolating the virus: refusing to open the E-mail and utilizing a virus isolating module of the computer to isolate the virus when the virus is detected; c) processing the virus: utilizing an antivirus program on the computer to perform anti-virus treatment on the E-mail.

The invention discloses body temperature measuring equipment for security detection, which comprises a driving box, wherein the rear side of the driving box is provided with a lifting mechanism; the lifting mechanism comprises a fixed plate arranged on the rear side of the driving box; a lifting cavity with a forward opening is formed in the fixed plate; a lifting block is arranged in the liftingcavity in a sliding manner; the front end of the lifting block is located in an external space; and the rear end surface of the driving box is fixedly connected with the front end of the lifting block. The equipment is simple and convenient to use, installed on the wall surface of a security guard box and capable of carrying out automatic body temperature detection on outsiders with different heights, and the detection result can be automatically fed back to the security personnel. In the detection process, the outsiders do not make contact with equipment by means of pedal control, the possibility of virus transmission is reduced, there is no contact risk in the whole process, the situation that the security personnel are infected with viruses hardly exists, the detection efficiency is high, and the equipment is suitable for the special virus outbreak period.

Provided herein is a method for detecting the presence of a COVID-19 virus in a human sample or an environmental sample having one or more viral and bacterial pathogens. Samples processed to obtain total nucleic acids. The nucleic acids are used as a template in a reverse transcription-amplification reaction to obtain cDNA, which is used in a PCR amplification reaction to obtain fluorescent COVID-19 virus specific amplicons. These amplicons are detected by microarray hybridization near the lowest limit of detection. Also provided is a method for detecting in addition to the COVID-19 virus, the presence of respiratory disease-causing pathogens including viruses, bacteria and fungus in a single assay using the above method.

The invention provides an isolation area garbage treatment robot based on automatic following. The isolation area garbage treatment robot comprises a first-stage treatment bin, and a second-stage treatment bin communicating with the first-stage treatment bin is arranged on the lower side of the first-stage treatment bin; a movable chassis is arranged on the lower side of the secondary treatment bin, a plurality of omnidirectional wheels are arranged on the movable chassis, and a stepping motor for driving the omnidirectional wheels is arranged on the top surface of the movable chassis; a top cover for opening and closing the top surface of the primary treatment bin is arranged on the upper side of the primary treatment bin, an infrared temperature measurement sensor is arranged on the top cover, a UWB following module is arranged on the front side wall of the primary treatment bin, two ultrasonic modules are arranged on the front side wall of the secondary treatment bin, and a side door is arranged on the right side of the secondary treatment bin. The problems that existing mechanical equipment is single in function, mostly adopts autonomous movement, virus spreading risks exist in the garbage transferring process, cost is high and the like are solved.

Generally, systems for air and water purification using unpowered charged sorbent mediums (3) which may include layered double hydroxide (LDH) (1) compositions, lignin (2), and methods of sorbing inorganic or organic material(s) onto such mediums, including anionic contaminants (10), cationic contaminants (11), non-ionic organic contaminants (20), and even biological agents (7) such as bacteria or viruses present in liquids or gases.

The invention belongs to the technical field of network security and discloses a computer network defense decision-making system. A virus pre-detection module, a virus identification module, a virus classification module, a virus processing defense module and a virus post-defense detection module are connected in sequence, and a virus patrol inspection module is used for patrol monitoring. The residual virus condition is detected by the virus post-defense detection module, and the residual virus can be directly sent to the virus processing defense module to continue checking and killing. In another classification, the virus patrol inspection module exists to monitor various viruses at any time, and the virus of the same species before can be directly sent to the virus processing defense module for checking and killing. The defense decision-making system module has a clear logical hierarchy, and each module has a clear division of labor. Each module automatically monitors the virus at any time to ensure high network security and ensure permanent and complete checking and killing of the same virus.

The invention discloses a distributed virtual firewall device, and relates to the field of technologies related to computer network technologies. The distributed virtual firewall device comprises a network virtual firewall, a host virtual firewall, a virtual switch, a host, a cloud computer and an external interface. The invention further discloses a system deployment method of the distributed virtual firewall device. The system deployment method comprises the steps: the network virtual firewall is arranged in the cloud computer, and a network virtual firewall access rule platform receives, compares and filters information obtained from the virtual switch through a network virtual firewall information verifying and filtering module. According to the distributed virtual firewall device andsystem deployment method thereof, by means of the host virtual firewall, the problem that when the host is connected with external hardware, virus information in the external hardware invades the interior of the cloud computer, and therefore files in the cloud computer are damaged can be prevented, and the network virtual firewall can prevent the condition that virus information or spam information exists in the virtual switch and directly enters the interior of the cloud computer.

The invention relates to primers and a kit for SARS-CoV-2 gene amplification. The primers and kit are combined with a gene amplification system including LAMP or RT-LAMP and the like, can quickly, simply and highly specifically determine COVID-19 patients and asymptomatic carriers and judge whether an SARS-CoV-2 virus exists in an environmental sample or not without complicated instruments. Optionally, a test result can be read by naked eyes, so that large-scale SARS-CoV-2 virus screening is achieved. An application method and applications of the primers and the kit are further provided.

The invention concerns a method of viral inactivation by dry heating of a virus present or potentially present in a biological product that has been dried according to the glass transition temperature. In a first step, the glass transition temperature of the dried product is determined. In a second step, the product is heated to a temperature not less than the determined glass transition temperature.