causative organism of rheumatic heart disease
Causes and Incidence. The causative agent of rheumatic fever (RF) is a group A streptococcus, and the disease usually is a delayed complication of an upper respiratory infection. The role of predisposing host and environmental factors is unclear.Malnutrition and overcrowding seem to be factors.auses and Incidence. The causative agent of rheumatic fever (RF) is a group A streptococcus, and the disease usually is a delayed complication of an upper respiratory infection. The role of predisposing host and environmental factors is unclear. Malnutrition and overcrowding seem to be factors.
Rheumatic heart disease. An acquired heart disease that is caused by rheumatic fever, which itself is caused by a preceding group A streptococcal (strep) infection of the throat. If left untreated this disease affects the valves of the heart and can eventually lead to serious complications or even death.n acquired heart disease that is caused by rheumatic fever, which itself is caused by a preceding group A streptococcal (strep) infection of the throat. If left untreated this disease affects the valves of the heart and can eventually lead to serious complications or even death.