142 results about "Viral spread" patented technology

Methods and arrangements for controlling a spread of malicious information in a network. A viral spread of information is tracked, in a network comprising interconnected nodes. Malicious information in the viral spread of information is identified. A topic-specific sub-network of nodes prone to be affected by the malicious information is predicted, and the effect of the malicious information at the sub-network of nodes is neutralized, via initiating a spread of neutralizing information to the sub-network of nodes. Other variants and embodiments are broadly contemplated herein.

Antimicrobial compositions having a rapid and persistent antiviral effectiveness against influenza viruses, including avian flu viruses, are disclosed. The antimicrobial compositions contain (a) a disinfecting alcohol, (b) an organic acid, and (c) water, wherein the composition has a pH of about 5 or less and the nonvolatile components of the composition are capable of forming a barrier film or layer on a treated surface.

A method of imparting a rapid and a persistent antiviral activity against viral-mediated diseases is disclosed. The method includes applying an antimicrobial compositions containing (a) a disinfecting alcohol, (b) an organic acid, and (c) water, and having a pH of about 5 or less, to at least one of the nose, nasal passages, and surrounding facial areas of skin of an individual.

The invention discloses an agilawood incense and a preparation method of the agilawood incense, and relates to medicine preparation. The agilawood incense of the invention comprises the following eight kinds of traditional Chinese medicines: agilawood, Folium Artemisiae Argyi, sandalwood, Rhizoma Atractylodis, Ligusticum chuanxiong, Pericarpium Citri Reticulatae, elecampane and Cyrtomium fortunei, and an appropriate amount of sawdust is added. The agilawood incense of the invention has the effects of aroma and damp removal, sterilization and detoxification and pathogenic evil removal, and can improve the air quality and inhibit virus proliferation so as to prevent influenza and control the transmission of influenza virus.

This invention provides methods of vaccinating a subject against a Herpes Simplex Virus (HSV) infection and disorders and symptoms associated with same, and impeding, inhibiting, reducing the incidence of, and suppressing HSV infection, neuronal viral spread, formation of zosteriform lesions, herpetic ocular disease, herpes-mediated encephalitis, and genital ulcer disease in a subject, comprising the step of contacting the subject with a mutant strain of the HSV, containing an inactivating mutation in a gene encoding a gE, gl, Us9, or other proteins.

The invention discloses ZIKV(zika virus)-NS1 protein and application of the ZIKV-NS1 protein to preparation of ZIKV propagation blocking vaccine. The invention provides protein which is named as the ZIKV-NS1 protein; the ZIKV-NS1 protein is protein formed by amino acid sequences shown as sequence 1 in a sequence table. The invention also provides application of the ZIKV-NS1 protein. The application comprises the following steps (e1) or (e2): (e1) ZIKV vaccine preparation; (e2) ZIKV propagation blocking vaccine preparation. The vaccine provided by the invention can block the propagation of ZIKVthrough mosquitos in nature; the infection rate of mosquitos in natural environment is reduced, so that healthy people groups are protected from being infected by ZIKV; the sudden outbreak of the ZIKV is prevented.

The present invention provides methods and compositions useful in the field of medicine, and particularly in the treatment of viral infections. More particularly, the invention relates to the use of methods and compositions for the inhibition of human immunodeficiency virus (HIV) transmission.

Methods for treating, preventing or slowing viral spread between plants cells by suppressing expression of the bZIP60 gene and / or activity of the BZIP60 protein are provided. In another aspect, the present disclosure provides methods for delivering TGBp3 to cells to induce apoptosis, and / or to trigger pro-survival pathways.

The invention discloses a reagent for identifying an African swine fever gene deleted vaccine and a detection method and application thereof. The reagent comprises three primer-probe compositions, a forward primer, a reverse primer and a probe of the first primer-probe composition are shown in the formulas of Seq ID No. 1-3, a forward primer, a reverse primer and a probe of the second primer-probecomposition are shown in the formulas of Seq ID No.4-6, forward and reverse primers and a probe of the third primer-probe composition are shown in the formulas of s Seq ID No. 7-9, ends 5' of the three probes are modified with different fluorophores, and tail ends 3' of the three probes are modified with fluorescence quenching groups. According to the reagent disclosed by the invention, differentgene deleted vaccines can be identified in the same reaction by adopting the three primer-probe compositions, a specific and sensitive detection reagent is provided for rapid identification of African swine fever vaccines, a powerful scientific tool is provided for preventing African swine fever virus propagation, and the reagent has important significance for effective prevention and control ofAfrican swine fever epidemic situations.

The invention relates to the field of traditional Chinese medicine, and discloses a repair traditional Chinese medicine used for treating blood cell infected by flaviviridae. The traditional Chinese medicine is prepared from: by weight, herba tubocapsici anomali 30g-80g, cymbopogon citratus 20g-50g, camellia flower 10g-30g, citrus aurantium flower 10g-30g, bitter gourd 20g-50g, mint 20g-50g, phellodendron amurense 10g-30g, cypress leaf 10g-30g, salix leaf 10g-30g, persimmon leaf 15g-35g, perilla nankinensis 10g-20g, radix sophorae flavescentis 30g-60g, eleusine indica 25g-80g, syzygium aromaticum 10g-30g, lonicera japonica 30g-80g, agastache rugosus 20g-50g, portulaca oleracea 10g-30g, glycyrrhiza 5g-15g, chrysanthemum 10g-35g, and foeniculum vulgare 10g-35g. The traditional Chinese medicine has cure effect of the diseases such as dengue, Zika virus, encephalitis, hepatitis and liver cancer infected by flaviviridae spreading, can treat and repair the blood cell from the source, has prophylaxis and treatment effect on flaviviridae diseases, is without any toxicity and side effects, and can improve the cure rate and cure efficiency of patients.

The invention relates to a pharynx secretion collection device, which comprises a handle and a collection mechanism, wherein the collection mechanism comprises an occlusion table, a tongue pressing component, a sampling component and an auxiliary observation component, wherein the occlusion table is arranged on one end of the handle; the tongue pressing component comprises a tongue depressor; oneend of the tongue depressor is arranged on one side end of the occlusion table; the sampling component comprises a sampling rod and a clamping unit for clamping the sampling rod, wherein the clampingunit is arranged in the middle of the occlusion table; the auxiliary observation component comprises a camera and a display screen, wherein the camera is arranged on the side surface, which is far away from the handle, on the occlusion table; and the camera collects the images of the sampling rod and the tongue depressor in real time and shows the images in the display screen. During sampling, themouth of a patient is under a closing state, a possibility that viruses in the spray of the patient spread is reduced, and meanwhile, medical care personnel can observe the state of the oral cavity of the patient and the position of the pharynx so as to realize accurate sampling.

The invention discloses an anti-propagation nucleic acid detection sampler and a sampling method thereof. The anti-propagation nucleic acid detection sampler comprises a supporting base plate and a sampling barrel, a main electric telescopic rod is vertically and fixedly connected over the supporting base plate, and a seat plate is horizontally and fixedly connected to the upper end of the main electric telescopic rod; a gravity sensing switch is embedded in the upper end face of the seat plate, and a disinfection box is fixedly connected to the upper side of the right end of the seat plate. The sampling cotton swab rod penetrates through the sampling cylinder, then the sampling cotton head penetrates into the oral cavity and throat position of a person to be detected, the sampling cotton swab rod drives the sampling cotton head to stir and touch the inner wall of the throat, and after completion, the sampling cylinder is directly pushed to be close to the mouth of the person to be detected, so that the rubber mouth cover is attached to seal the mouth; then the sampling cotton head is drawn into the inner side of the sampling cylinder, virus propagation caused by exposure of the sampling cotton head in an external space after sampling is avoided, and meanwhile, the ejector rod is pressed to enable the cutter sleeve to cut off the sampling cotton swab rod and enable the cutter sleeve to fall into the sample cylinder.

The invention belongs to the field of disinfectants, the invention discloses a foam type sterilizing, disinfecting and air purifying agent as well as a preparation method and application thereof. Theproduct is mainly prepared from the following components in percentage by weight: 0.10-0.40% of peroxyacetic acid, 0.15%-0.60% of hydrogen peroxide, 0.05%-0.10% of a quaternary ammonium salt type cationic surfactant, 0.05%-0.10% of benzethonium chloride, 0.10%-0.20% of alkyl glycoside, 0.10%-0.20% of a stabilizer, 0.20%-0.60% of glycerol and 97.80%-99.25% of water. The product has stable performance, wherein the retention time of the formed sterilization disinfectant foam in the environment is long and the sterilization and disinfection action time is long. The product is low in cost, has a good air purifying effect, is non-toxic, pollution-free and residue-free, has a broad-spectrum sterilizing effect, is applied to prevention and control of the novel coronavirus, can effectively kill thenovel coronavirus and cut off a virus transmission path, and can also effectively kill escherichia coli, staphylococcus aureus, pseudomonas aeruginosa, bacterial spores and other viruses and microorganisms.

The invention discloses an intelligent meal delivery robot for hospital wards. The intelligent meal delivery robot comprises a robot body with a computer control device arranged on the upper end face,wherein the computer control device comprises a controller which is fixedly arranged on the upper end face of the robot body and provided with an intelligent chip; and a touch screen displayer capable of setting a meal delivery route for the robot through a touch screen is arranged on the front side end face of the controller, and a camera capable of carrying out face recognition on patients is arranged on the upper side of the touch screen displayer. According to the meal delivery robot, the meal delivery route can be planned and the identity of the meal takers can be identified through thecontroller 4 provided with the intelligent chip, and the controller controls a disinfection device to carry out disinfection processing on recovered meal delivery drawers, so that the situation that virus is spread out due to the fact that a patient carrying an infectious virus makes contact with meal delivery drawers is avoided, and virus spreading possibility is reduced.

The invention provides an isolation device with a virus spreading prevention function, a control method thereof and an elevator. The isolation device is applied to the elevator. The elevator compriseskeys, and the isolation device comprises a shell, an isolation film and a drive mechanism. According to the isolation device with the virus spreading prevention function, the control method thereof and the elevator, the isolation film is arranged to shield the surfaces of the keys, the drive mechanism switches the pressed isolation film into the shell to be sterilized, and thus the problem that viruses remain on the positions of the keys, and cross infection is caused is solved. Moreover, a sterilizing structure is arranged and can sterilize the recycled isolation film, it is ensured that theviruses or bacteria on the isolation film can be disinfected, moving of the isolation film is in linkage with the keys, the purpose of moving the isolation film automatically is achieved, moreover, the keys are divided into multiple lines, only the pressed isolation film is recycled and disinfected, the replacing area of the isolation film is reduced, and cost is saved.

The invention discloses a global new coronavirus propagation prediction method based on an optimized SEIRD model, and relates to the technical field of infectious disease data processing, and the method comprises the steps: A, collecting data, and building an improved SEIRD cabin model on the basis of an epidemiological SEIR model: 1, increasing the index of latent crowd infection rate, subdividing the susceptible population conversion rate in the SEIR model into a latent population infection rate and a definite population infection rate; 2, subdividing the removal rate in the SEIR model intoa death rate and a cure rate; 3, expressing the cure rate and the death rate as a time sequence function of time t; dividing crowds in the bin into five types, namely susceptible people, symptomatic latent infected people, symptomatic infected people, cured people and dead people; B, respectively carrying out parameter estimation and model fitting on the model according to a least square method, estimating an inflection point and an end date of an epidemic situation, and carrying out model inspection by using actual data. The method has the advantages of accurate prediction and good reliability.

The invention relates to a non-contact face close-range air supply and exhaust device capable of preventing novel coronavirus pneumonia virus propagation. The non-contact face close-range air supply and exhaust device comprises a head ring, a temperature sensing probe, an air guide cylinder, an upper baffle and a connector. A connecting rod is arranged at the top end of the head ring; the temperature sensing probe is arranged at the outer end of the connecting rod; a cavity is formed in the air guide cylinder, an airflow through hole is formed in the inner ring, and the airflow through hole iscommunicated with the cavity; rotating shafts are arranged inside the two ends of the air guide cylinder; the rotating shafts are rotationally connected with the head ring; a joint is arranged on oneside of the head ring, an opening is formed in the outer side of the joint, and the opening is communicated with the cavity; the upper baffle and a lower baffle are arranged in the middle section ofthe air guide cylinder; a rotating groove is formed in the connector, and the connector is rotationally connected with the joint; an air guide pipe is arranged at the lower end of the connector; airflow in the air guide pipe can enter and exit from the airflow through hole through the connector, the joint and the cavity; and the air guide cylinder can rotate along center lines A of the rotating shafts. The non-contact face close-range air supply and exhaust device can provide guarantee for public to block superstrong virus propagation in a superstrong virus prevalence period.

The invention discloses a system for tracing an infection source based on an epidemic infectious disease virus field. The system comprises an infectious disease spreading city diffusion modeling unitwith takes air as a medium, a collecting, cleaning and processing unit for collecting, cleaning and processing spatio-temporal trajectory data and infection attack data of virus carrying crowds, a virus carrier position semantic information acquisition unit, a virus distribution density calculation unit which takes the virus carrier as a position center, a virus carrying population time, space andvirus distribution density data mapping unit, a temporal GIS-based epidemic infectious disease virus field cloud platform construction unit, a calculation unit for calculating the probability that the virus carrier is infected by a virus somewhere at a certain time, a calculation unit for calculating the probability that the virus carrier is infected by the virus within a certain tracing time period, a screening unit for screening the infected time period and a virus field of the virus carrier, and an association unit for associating the infected virus carrier with the virus carrier generating the virus field, wherein the units above are connected in sequence. The system can trace the virus infection source and the propagation chains, so that virus propagation is quickly restrained.

The invention discloses a preparation method of novel decellularized fishskin substrates. The method comprises the following steps of (1) performing pretreatment of washing Tilapia skin, removing impurities and the like; (2) after acid treatment, scraping scales; (3) performing washing with a surfactant for decellularization; (4) performing washing with alkali liquor; (5) performing treatment witha chemical bleaching agent; and (6) performing post-treatment of drying, sterilization and the like. The decellularized fishskin substrates prepared by the preparation method disclosed by the invention have the advantages of being low in production cost, high in heat stability, free from zoonoses virus propagation risk and the like, and besides, a scale removing technique is also innovatively provided, so that the clinical practicality of products is greatly increased; and various techniques are comprehensively applied for virus inactivation, so that the biological safety of the products is increased. Besides, the invention discloses an application of the decellularized fishskin substrates as wound surface dressing, so that wound healing and regenerated tissue epithelization can be promoted.

The invention discloses an ultraviolet disinfecting garbage can lid which comprises a garbage can main body and a garbage can lid body; the garbage can lid body is hinged to the top of the garbage canmain body; a solar panel is fixedly connected with the top of the garbage can lid body; an ultraviolet disinfecting lamp is connected with the bottom of the garbage can lid body in an embedded manner; and an infrared ray sensing switch is fixedly mounted at the bottom of the garbage can lid body and is positioned on the right side of the ultraviolet disinfecting lamp. The ultraviolet disinfectinggarbage can lid reduces the cost, does not affect matched application of a garbage truck, is easy to understand in structure and reduces smelly peculiar smell of the garbage can main body; the entireultraviolet disinfecting garbage can lid does not need to scrap when components are broken; ultraviolet disinfection plays a role in restraining bacterial viruses, so that staff exposure hazard is reduced, and waste and hurt to a human body are reduced; unified application facilitates health management of communities and villages; and unified collection and unified disinfection are changed into separated collection and separated disinfection, so that pressure of unified disinfection and viral spreading capacity are reduced.

Methods of inhibiting the spread of African swine fever virus and / or classical swine fever virus in animal feed, feed ingredients, and pet food are provided. The methods utilize generally safe chemical mitigants, such as medium chain fatty acids. The chemical mitigants are effective when introduced to the feed or feed ingredients at inclusion rates much lower than previous methods for inhibiting other microbes. The methods are particularly suitable for use in post-processing treatment of animal feed, feed ingredients, or pet food that will be transported and stored for multiple days or weeks.

The invention provides a method for identifying parameters of a novel coronavirus propagation model based on a Kalman filtering theory, which is used for solving the technical problems in the prior art that an infectious disease model does not consider the incubation period and the infection rate does not consider the influence of time change, and comprises the following implementation steps of: obtaining a novel coronapneumonia epidemic situation data set; establishing an infectious disease propagation model, supplementing unknown parameters in the infectious disease propagation model by using a Kalman filtering algorithm, modeling an identified infection rate into a time-varying function which decreases progressively along with time, establishing an infection rate change model, and updating the infectious disease propagation model according to the infection rate change model to obtain an optimal infectious disease propagation model for establishing an optimal infectious disease propagation model; and predicting the infectious disease propagation condition by using the optimal infectious disease propagation model. The method effectively improves the accuracy of parameter prediction of the new coronavirus infection model.

A small sink mounted on a stationary swivel is provided which can be used by adults and children in the hygienic practice to prevent the spread of deadly bacteria and viruses. The mini sink is easily swung in an arc to a position in front of the user, then, after use, it can be pushed back into a storage position. Part II of this invention covers public avenues where too, the normally accepted practice of washing hands after cleansing the posterior area of fecal matter and urine and redressing was thought to assure and meet personal sanitary requirements. But sterilizing hand inserts and the miniscrub set new standards for personal hygiene at home and abroad.

The invention relates to vaccines used in the eradication or control of pestivirus infections, particularly those used in pigs or ruminants. The invention provides nucleic acid, pestivirus-like particles and a pestivirus vaccine, comprising the nucleic acid or particles, which is capable of eliciting a proper immune response without having the ability to spread throughout the vaccinated animal, thereby avoiding the negative consequences of viral spread. Preferably, the immune response allows for serological discrimination between vaccinated animals and wild-type pestivirus infected animals.

The invention discloses preparation of a nano-composite bactericidal and antiviral material and an application thereof, and belongs to the technical field of antivirus. The material is prepared from the following components: nano-silver particles, nano-cuprous oxide particles, a traditional Chinese medicine extracting solution, polymer nano-particles, a stable dispersing agent, a humectant and water. The material has the characteristics of no toxicity, harmlessness, environmental protection, strong durability, broad-spectrum / efficient sterilization, virus resistance and the like, is convenientand simple to use, can be directly sprayed, can quickly kill various bacteria, viruses and the like in various outdoor and indoor spaces and articles, and inhibits the spreading problem of epidemic viruses confronted by human beings at present.

The invention discloses a new coronavirus propagation prediction method based on a long short-term memory (LSTM) network model, and the method comprises the following steps: 1, collecting the propagation data of covid-19 virus as the basic data of research, and intercepting the data at the initial stage of virus outbreak to obtain a data set; 2, segmenting the data set into a training data set and a test data set; 3, training a long short-term memory (LSTM) network model by using the training data set obtained in the step 2; 4, predicting future data by using the model trained in the step 3, and comparing the future data with real data in the test data set; and 5, quantifying a prediction error, and evaluating the accuracy of the model. The invention belongs to the technical field of virus propagation models, and particularly relates to a covid-19 virus propagation prediction method based on a long short-term memory (LSTM) network model, the law of data change is obtained from data, the prediction purpose is achieved, and the larger the training data volume is, the model can learn more laws, and a better prediction effect can also be achieved.

The invention relates to a connecting base structure for injection. The connecting base structure comprises a connecting base body. The connecting base body is provided with a connecting port connected with an injection head of a needle cylinder, a connector connected with an injection piece and a connecting channel connecting the connecting port and the connector, the connecting channel is internally provided with a one-way valve, and the injection head of the needle cylinder opens or closes the one-way valve. According to the connecting base structure for injection, the one-way valve is arranged in the connecting base body and is opened or closed through the injection head of the needle cylinder, the both-way stopping function on liquid medicine and samples is achieved, safety and sanitation are achieved, hidden danger of virus spreading is reduced, and the connecting base structure is simple and suitable for different injection devices.