Stressors can assume a number of patterns in relation to time. They may be classified as acute time-limited, chronic intermittent, or chronic sustained. An acute time-limited stressor is one that occurs over a short time and does not recur. A chronic intermittent stressor is one to which a person is chronically exposed intermittently; chronic sustained is continuous. PTSD is characterized by a severe stress response secondary to experiencing previous trauma.
The most common type of bacteria that causes community-acquired pneumonia (CAP) is Streptococcus pneumoniae. Other bacteria that cause CAP include Mycoplasma pneumoniae, Chlamydophila pneumoniae, and Legionella pneumophila. Mycoplasma pneumoniae is known to be the main cause of walking pneumonia.
Water temperature influences the onset of fish spawn, aquatic vegetation growth and the biological demand for oxygen in ponds. Temperature increases it holds less oxygen. Also water stratification.
