Breeding for Resistance to Viral Pathogens

2006 ◽  
pp. 457-485 ◽  
Author(s):  
J Scott
Keyword(s):  
Viral Pathogens ◽  
Breeding For Resistance

The Diagnosis of Viral Disease by Electron Microscopy

1982 ◽  
Vol 40 ◽  
pp. 270-273
Author(s):  
William B. McCombs ◽  
Cameron E. McCoy
Keyword(s):  
Electron Microscopy ◽  
Hospital Stay ◽  
Viral Infections ◽  
Medical Profession ◽  
Bacterial Pathogens ◽  
Viral Disease ◽  
Viral Pathogens ◽  
Academic Interest ◽  
The Past

Recent years have brought a reversal in the attitude of the medical profession toward the diagnosis of viral infections. Identification of bacterial pathogens was formerly thought to be faster than identification of viral pathogens. Viral identification was dismissed as being of academic interest or for confirming the presence of an epidemic, because the patient would recover or die before this could be accomplished. In the past 10 years, the goal of virologists has been to present the clinician with a viral identification in a matter of hours. This fast diagnosis has the potential for shortening the patient's hospital stay and preventing the administering of toxic and/or expensive antibiotics of no benefit to the patient.

Estimation of black and red currant varieties of VNIISPK breeding for resistance to powdery mildew

2020 ◽  
Vol 60 (1) ◽  
pp. 19-27
Author(s):  
O. V. Kalinina ◽  
S. D. Knyzev ◽  
O. D. Golyaeva ◽  
O. V. Panfilova ◽  
A. Y. Bakhotskaya
Keyword(s):  
Powdery Mildew ◽  
Breeding For Resistance ◽  
Red Currant

Influence of Stem Diameter on Oviposition Preference of the Alfalfa Weevil and Its Importance in Breeding for Resistance 1

Crop Science ◽  
1967 ◽  
Vol 7 (5) ◽  
pp. 428-430 ◽  
Author(s):  
B. L. Norwood ◽  
D. K. Barnes ◽  
R. S. VanDenburgh ◽  
C. H. Hanson ◽  
C. C. Blickenstaff
Keyword(s):  
Oviposition Preference ◽  
Stem Diameter ◽  
Alfalfa Weevil ◽  
Breeding For Resistance

Breeding for Resistance in Maize to First and Second Broods of the European Corn Borer 1

Crop Science ◽  
1974 ◽  
Vol 14 (5) ◽  
pp. 725-727 ◽  
Author(s):  
W. A. Russell ◽  
W. D. Guthrie ◽  
R. L. Grindeland
Keyword(s):  
European Corn Borer ◽  
Corn Borer ◽  
Breeding For Resistance

Respiratory viral testing and antibacterial treatment in patients hospitalized with community-acquired pneumonia

2020 ◽  
pp. 1-9
Author(s):  
Michael Klompas ◽  
Peter B. Imrey ◽  
Pei-Chun Yu ◽  
Chanu Rhee ◽  
Abhishek Deshpande ◽  
...  
Keyword(s):  
Retrospective Cohort ◽  
Respiratory Virus ◽  
Respiratory Viruses ◽  
Community Acquired Pneumonia ◽  
Blood Cultures ◽  
Antibacterial Treatment ◽  
Viral Pathogens ◽  
Antimicrobial Utilization ◽  
Viral Testing ◽  
Virus Testing

Abstract Objective: Viruses are more common than bacteria in patients hospitalized with community-acquired pneumonia. Little is known, however, about the frequency of respiratory viral testing and its associations with antimicrobial utilization. Design: Retrospective cohort study. Setting: The study included 179 US hospitals. Patients: Adults admitted with pneumonia between July 2010 and June 2015. Methods: We assessed the frequency of respiratory virus testing and compared antimicrobial utilization, mortality, length of stay, and costs between tested versus untested patients, and between virus-positive versus virus-negative patients. Results: Among 166,273 patients with pneumonia on admission, 40,787 patients (24.5%) were tested for respiratory viruses, 94.8% were tested for influenza, and 20.7% were tested for other viruses. Viral assays were positive in 5,133 of 40,787 tested patients (12.6%), typically for influenza and rhinovirus. Tested patients were younger and had fewer comorbidities than untested patients, but patients with positive viral assays were older and had more comorbidities than those with negative assays. Blood cultures were positive for bacterial pathogens in 2.7% of patients with positive viral assays versus 5.3% of patients with negative viral tests (P < .001). Antibacterial courses were shorter for virus-positive versus -negative patients overall (mean 5.5 vs 6.4 days; P < .001) but varied by bacterial testing: 8.1 versus 8.0 days (P = .60) if bacterial tests were positive; 5.3 versus 6.1 days (P < .001) if bacterial tests were negative; and 3.3 versus 5.2 days (P < .001) if bacterial tests were not obtained (interaction P < .001). Conclusions: A minority of patients hospitalized with pneumonia were tested for respiratory viruses; only a fraction of potential viral pathogens were assayed; and patients with positive viral tests often received long antibacterial courses.

scholarly journals Medicinal Plants, Phytochemicals, and Herbs to Combat Viral Pathogens Including SARS-CoV-2

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1775
Author(s):  
Arumugam Vijaya Anand ◽  
Balasubramanian Balamuralikrishnan ◽  
Mohandass Kaviya ◽  
Kathirvel Bharathi ◽  
Aluru Parithathvi ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Severe Acute Respiratory Syndrome ◽  
Viral Entry ◽  
Antiviral Agents ◽  
Special Focus ◽  
Direct Inhibition ◽  
Viral Pathogens ◽  
Important Health ◽  
Antiviral Activities ◽  
Important Health Issue

The coronavirus disease 2019 (COVID-19) pandemic, caused by severe acute respiratory syndrome corona virus-2 (SARS-CoV-2), is the most important health issue, internationally. With no specific and effective antiviral therapy for COVID-19, new or repurposed antiviral are urgently needed. Phytochemicals pose a ray of hope for human health during this pandemic, and a great deal of research is concentrated on it. Phytochemicals have been used as antiviral agents against several viruses since they could inhibit several viruses via different mechanisms of direct inhibition either at the viral entry point or the replication stages and via immunomodulation potentials. Recent evidence also suggests that some plants and its components have shown promising antiviral properties against SARS-CoV-2. This review summarizes certain phytochemical agents along with their mode of actions and potential antiviral activities against important viral pathogens. A special focus has been given on medicinal plants and their extracts as well as herbs which have shown promising results to combat SARS-CoV-2 infection and can be useful in treating patients with COVID-19 as alternatives for treatment under phytotherapy approaches during this devastating pandemic situation.

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