Understand what a disease-causing agent is. Learn the definition of a disease-causing agent and see the different types of disease-carrying organisms with examples. Updated: 11/21/2023 Table of Contents What is a Disease-Causing Agent? Types of Disease Carrying Organisms Lesson Summary ...
Diseases of animals remain a concern principally because of the economic losses they cause and the possible transmission of the causative agents to humans. The branch of medicine called veterinary medicine deals with the study, prevention, and treatment of diseases not only in domesticated animals ...
Plant disease, an impairment of the normal state of a plant that interrrupts or modifies its vital functions. Plant diseases can be classified as infectious or noninfectious, depending on the causative agent. Learn more about the importance, transmission
(McDade et al., 1977). Legionnaires’ disease, as it is commonly known, occurs both in individual spontaneous cases and in outbreaks. Epidemics can occur on cruise ships or in pools. The causative organism is also responsible for a systemic febrile illness without pneumonia known as Pontiac ...
Myelination is often compromised in ATR-X intellectual disability syndrome patients. Here, the authors show that the causative gene, ATRX, can regulate myelination in mice by modulating systemic thyroxine levels and by supporting oligodendrocyte progenitor differentiation. ...
While the causative direction underlying these correlations is uncertain, these disease linkages are interesting in light of the predicted Lachnospiraceae hosts of many Ca. Heliusvirales, because this bacterial family includes species involved in short-chained fatty acid production (e.g., Roseburia ...
Definition Sickle cell disease ( SCD ) is a group of genetic disorders that cause an abnormal Hb molecule ( Hb S) that transforms RBCs into sickle-shaped cells, resulting in chronic anemia , vasoocclusive episodes, pain , and organ damage. Epidemiology[2] Most common form of intrinsic hemolyt...
Incidence of Parkinson’s disease has grown substantially, triggered by the discovery of several causative monogenetic mutations. These mutations likely only explain a small proportion (5%–10%) of all Parkinson’s disease cases; however, ~ 90% of cases are apparently sporadic.4 In sporadic ...
organisms [24]. Risk factors include hypoxia-inducing contact lens wear, while agricultural and other ocular trauma is a more common predisposing factor in resource-poor countries. In a proportion of cases, it is bilateral, notably in neonatal conjunctivitis where the causative pathogen may be...
Fibrinouspericarditismay accompany Glasser's disease (Haemophilusparasuis) (Fig. 10-75),streptococcal infections,enzooticmycoplasma pneumonia, andsalmonellosis. Sterile swabs of the pericardial exudates are recommended to identify the causative organism. See the discussion of pericarditis in the section ...