Importance and Value of Trees. Since the beginning, trees have furnished us with two of lifeâs essentials, food and oxygen. As we evolved, they provided additional necessities such as shelter, medicine, and tools. Today, their value continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created by our modern lifestyles.
However, the most serious is called psittacosis. With this disease, an agent called Chlamydia psittaci causes it, and the disease is also called ornithosis. Birds can be asymptomatic carriers, and may only fall ill when upset, as stress is a major component in all avian diseases.
Hyponyms (each of the following is a kind of zoonotic disease): actinomycosis (disease of cattle that can be transmitted to humans; results from infection with actinomycetes; characterized by hard swellings that exude pus through long sinuses).ang's disease; brucellosis; contagious abortion (an infectious disease of domestic animals often resulting in spontaneous abortion; transmittable to human beings). glanders (a destructive and contagious bacterial disease of horses that can be transmitted to humans).