Evaluation of the Efficacy of a Recombinant Adenovirus Expressing the Spike Protein of Porcine Epidemic Diarrhea Virus in Pigs.

Evaluation of the Efficacy of a Recombinant Adenovirus Expressing the Spike Protein of Porcine Epidemic Diarrhea Virus in Pigs. Biomed Res Int. 2019;2019:8530273 Authors: Liu X, Zhao D, Zhou P, Zhang Y, Wang Y Abstract In recent years, many studies have shown that recombinant adenovirus live vector-based vaccines are a promising novel vaccine candidate against virus infection. Therefore, in this study, a new type of recombinant adenovirus expressing the spike (S) protein of porcine epidemic diarrhea virus (PEDV), rAd-PEDV-S, was generated, and its characteristics were determined. Then, its efficacy as a vaccine candidate was evaluated in 4-week-old pigs. The results showed that the S protein could be well expressed at a high level in rAd-PEDV-S-infected cells and that the viral titers could reach 1011 PFU/mL. Further animal experimental results showed that rAd-PEDV-S elicited a significant PEDV-specific humoral immune response after vaccination (P
Source: Biomed Res - Category: Research Authors: Tags: Biomed Res Int Source Type: research

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CONCLUSIONS: The endemic common respiratory pathogens are more prevalent than SARS-CoV-2 in the SARS-CoV-2 non-epidemic areas of this research. Detection of the pathogen is the unique means for definite COVID-19 diagnosis. PMID: 32965014 [PubMed - as supplied by publisher]
Source: European Review for Medical and Pharmacological Sciences - Category: Drugs & Pharmacology Tags: Eur Rev Med Pharmacol Sci Source Type: research
The cleverest of enemies thrive on surprise attacks. Viruses—and coronaviruses in particular—know this well. Remaining hidden in animal hosts for decades, they mutate steadily, sometimes serendipitously morphing into more effective and efficient infectious agents. When a strain with just the right combination of genetic codes that spell trouble for people makes the leap from animal to human, the ambush begins. Such was the case with SARS-CoV-2, the coronavirus behind COVID-19, and the attack was mostly silent and insidious at first. Many people infected with SARS-CoV-2 remained oblivious as they served as the v...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized COVID-19 Magazine Source Type: news
Authors: Wang J, Yue Y, Zhao Y, Ouyang X, Zhang H, Ding Z, Song W, Shi M, Li X, Li Q Abstract Human adenovirus infection is a common cause of upper and lower respiratory illness and easily breaks out in schools and the army. In an adenovirus epidemic, a large number of samples would be collected for laboratory diagnosis, and it is urgent to optimize the current sampling strategy. We researched the application of laboratory detection in the adenovirus epidemic and optimized the range of laboratory pathogen detection in the adenovirus epidemic by summarizing previous theoretical achievements, research reports, and ex...
Source: Social Work in Public Health - Category: International Medicine & Public Health Tags: Soc Work Public Health Source Type: research
AbstractRespiratory tract infections (RTI) can take a serious course under immunosuppression. Data on the impact of the underlying pathogens are still controversial. Samples from the upper (n = 322) and lower RT (n = 169) were collected from 136 children and 355 adults; 225 among them have been immunocompromised patients. Exclusion criteria were presence of relevant cultivable microorganisms, C-reactive protein>  20 mg/dl, or procalcitonin>  2.0 ng/ml. Samples were tested by PCR for the presence of herpesviruses (HSV-1/-2; VZV; CMV; HHV6; EBV), adenoviruses, bocavir...
Source: European Journal of Clinical Microbiology and Infectious Diseases - Category: Microbiology Source Type: research
Discussions with the U.S. Food and Drug Administration (FDA) have taken place to define the required data set for filing US licensure. About Janssen’s Ebola Vaccine Regimen The Janssen preventive Ebola vaccine regimen, Ad26.ZEBOV and MVA-BN-Filo, utilizes a non-replicating viral vector strategy in which viruses – in this case adenovirus serotype 26 (Ad26) and Modified Vaccinia Virus Ankara (MVA) – are genetically modified so that they cannot replicate in human cells. In addition, these vectors carry the genetic code of several Ebola virus proteins in order to trigger an immune response.Janssen’s vac...
Source: Johnson and Johnson - Category: Pharmaceuticals Tags: Innovation Source Type: news
Discussions with the FDA are ongoing to define the required data set for filing Janssen’s Ebola vaccine regimen under the FDA’s Animal Rule licensure pathway. About Janssen’s Ebola Vaccine Regimen The Janssen investigational preventive Ebola vaccine regimen (Ad26.ZEBOV, MVA-BN-Filo) utilizes a viral vector strategy in which viruses – in this case adenovirus serotype 26 (Ad26) and Modified Vaccinia Virus Ankara (MVA) – are genetically modified so that they cannot replicate in human cells. In addition, these vectors are modified to safely carry the genetic code of an Ebola virus protein in order...
Source: Johnson and Johnson - Category: Pharmaceuticals Tags: Innovation Source Type: news
Abstract Oculo-centric factors may provide a key to understanding invasion success by SARS-CoV-2, a highly contagious, potentially lethal, virus with ocular tropism. Respiratory infection transmission via the eye and lacrimal-nasal pathway elucidated during the 1918 influenza pandemic, remains to be explored in this crisis. The eye and its adnexae represent a large surface area directly exposed to airborne viral particles and hand contact. The virus may bind to corneal and conjunctival angiotensin converting enzyme 2 (ACE2) receptors and potentially to the lipophilic periocular skin and superficial tear film with ...
Source: The Ocular Surface - Category: Opthalmology Authors: Tags: Ocul Surf Source Type: research
PMID: 32350223 [PubMed - as supplied by publisher]
Source: Japanese Journal of Infectious Diseases - Category: Infectious Diseases Authors: Tags: Jpn J Infect Dis Source Type: research
Vidur Mahajan Vasanth Venugopal By VASANTH VENUGOPAL MD and VIDUR MAHAJAN MBBS, MBA What can Artificial Intelligence (AI) do? AI can, simply put, do two things – one, it can do what humans can do. These are tasks like looking at CCTV cameras, detecting faces of people, or in this case, read CT scans and identify ‘findings’ of pneumonia that radiologists can otherwise also find – just that this happens automatically and fast. Two, AI can do things that humans can’t do – like telling you the exact time it would take you to go from point A to point B (i.e. Google maps), or like ...
Source: The Health Care Blog - Category: Consumer Health News Authors: Tags: Artificial Intelligence COVID-19 Health Tech AI coronavirus CT scans Pandemic Radiology Vasanth Venugopal Vidur Mahajan Source Type: blogs
ConclusionThe propagation of Ad54 in A549 is slow compared with Ad37, Ad64 and Ad5. This slow propagation could have been caused by slow genomic replication resulting from delayed viral entry or E1 transcription initiation. The EKC caused by Ad54 needs more attention because the slow propagation of Ad54 may contribute to prolonged disease duration.
Source: Japanese Journal of Ophthalmology - Category: Opthalmology Source Type: research
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