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Related Concept Videos

Respiratory Syncytial Virus Disease01:29

Respiratory Syncytial Virus Disease

Human respiratory syncytial virus (RSV) is a widespread pathogen that primarily targets infants and young children but also poses a serious health risk to elderly and immunocompromised individuals. Belonging to the Pneumoviridae family, RSV is a negative-sense, single-stranded RNA virus within the Pneumovirus genus. Its global health burden is significant, with millions of cases annually resulting in hospitalizations and mortality, particularly in resource-limited settings. Although most...
Acute Pharyngitis01:30

Acute Pharyngitis

Introduction
Acute pharyngitis is the inflammation of the back of the throat (pharynx), commonly resulting in a sore throat. It is a frequently encountered condition that prompts individuals to seek medical advice.
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Acute pharyngitis can be categorized based on its underlying cause:
Pulmonary Tuberculosis IV01:26

Pulmonary Tuberculosis IV

Tuberculosis, more commonly referred to as TB, is an infectious disease stemming from Mycobacterium tuberculosis. While it primarily impacts the lungs, TB can also affect other body areas. Given its severity and global impact, timely and accurate diagnosis is crucial for controlling its spread and improving patient outcomes.
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Pneumonia V: Nursing management and Prevention01:30

Pneumonia V: Nursing management and Prevention

Nursing management of pneumonia involves promoting airway patency, facilitating rest and conserving energy, encouraging fluid intake, maintaining nutrition, and educating patients.
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
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Chickenpox01:20

Chickenpox

Chickenpox is an acute, highly contagious disease caused by the varicella-zoster virus (VZV), a double-stranded DNA virus belonging to the Herpesviridae family. Its transmission occurs primarily through the inhalation of respiratory droplets or direct contact with vesicular fluid from skin lesions. The incubation period typically ranges from 10 to 21 days, during which the virus replicates and disseminates through sequential phases within the host. Although generally self-limiting in children,...
Pneumonia IV: Management01:28

Pneumonia IV: Management

The treatment of pneumonia varies based on its severity and the causative pathogen. Here is a structured approach to managing pneumonia, integrating pharmaceutical and supportive care strategies.
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:

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Updated: Jul 3, 2026

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
11:56

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

Published on: April 11, 2014

Ascorbic acid and infectious bronchitis infections in broilers.

F G Davelaar1, J Bos

  • 1Department of Poultry Diseases, State University of Utrecht, AA Doom, The Netherlands.

Avian Pathology : Journal of the W.V.P.A
|December 1, 1992
PubMed
Summary
This summary is machine-generated.

Supplementing broiler chicken feed with ascorbic acid (vitamin C) enhances resistance to infectious bronchitis virus. Optimal results were observed with 300-330 ppm, indicating a dose-dependent effect on disease resistance.

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An Ex Vivo Chicken Primary Bursal-cell Culture Model to Study Infectious Bursal Disease Virus Pathogenesis
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A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells
11:56

A Rapid and Specific Microplate Assay for the Determination of Intra- and Extracellular Ascorbate in Cultured Cells

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An Ex Vivo Chicken Primary Bursal-cell Culture Model to Study Infectious Bursal Disease Virus Pathogenesis
07:26

An Ex Vivo Chicken Primary Bursal-cell Culture Model to Study Infectious Bursal Disease Virus Pathogenesis

Published on: October 4, 2018

Area of Science:

  • Poultry Science
  • Avian Virology
  • Animal Nutrition

Background:

  • Infectious bronchitis virus (IBV) poses a significant threat to the poultry industry.
  • Ascorbic acid (vitamin C) is known for its immune-modulating properties.
  • Understanding nutritional strategies to enhance host resistance is crucial for broiler health.

Purpose of the Study:

  • To investigate the impact of dietary ascorbic acid supplementation on broiler chick resistance to infectious bronchitis virus.
  • To determine the dose-dependent effects of ascorbic acid on key indicators of disease severity.

Main Methods:

  • Broiler chicks were fed diets supplemented with varying levels of ascorbic acid.
  • Chicks were subsequently challenged with infectious bronchitis virus.
  • Resistance was evaluated by assessing the severity of tracheal lesions and the incidence of airsacculitis.

Main Results:

  • Ascorbic acid supplementation demonstrated a dose-dependent effect on broiler resistance to IBV.
  • Dietary levels of 300 to 330 ppm ascorbic acid yielded the most significant improvements in resistance.
  • Higher concentrations of ascorbic acid (>600 ppm) showed diminished beneficial effects.

Conclusions:

  • Dietary ascorbic acid supplementation can effectively enhance broiler chick resistance against infectious bronchitis virus.
  • An optimal range of 300-330 ppm ascorbic acid in feed is recommended for improved disease resistance.
  • Further research may explore the mechanisms underlying ascorbic acid's protective effects in poultry.