bacteremia caused by E. coli, Klebsiella pneumoniae, Pseudomonas aereus
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In short, bacteremic septic shock can be caused by a variety of bacterial cell components.  For gram negative bacteria, endotoxins, formyl peptides, and exotoxins are among components of the cell that can elicit such a response.  In gram positives, enterotoxins, peptidoglycans, and most especially superantigens (SPEs) will act in the same manner.  These cell components super-activate our cell-mediated immune system cascade, causing mass release of cytokines.  Cytokines are inflammatory mediators, and are ultimately responsible for the fever and septic shock effects seen.
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1.Gastroenteritis: can be caused by a rapid change in diet (spicy foods, alcohol). The most common cause of infection is E. coli. \n\n2.Dysentery: A more severe form of gastroenteritis. The distinction is an incredible amount of water loss and occasional cramping. Can be caused by bacteria, a protozoan or salmonella.\n\n3.Crohn's disease: Inflammation of the intestines.\n\n4.Staphylococcal Enterotoxicosis: Disease of the lower digestive system caused by the bacteria S.aureus.\n\n5.Peptic Ulcer Disease: Caused by a bacteria (pylori) that neutralizes stomach acids and colonizes the stomach's mucosa.
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Bacteria - Pseudomonas\nFungi      - Trichoderma, Verticillium
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Salmonellosis, Salmonella Enterica
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Yes a person can have a bacterial infection in their blood. But the only way to know what your problem is, is to go to the doctor. Here is a page about bacteria in the blood, also known as sepsis. http://www.emedicine.com/MED/topic3163.htm \nThere could be many things causing your symptoms. Go to a doctor and get checked out. Good luck.
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I would suggest you have a complete blood culture done to rule out other causes for your low blood count.  There are many factors that can lead to low hemoglobin counts. Type webmd into your search bar and then type in hemoglobin. This will give you a more thorough example of what I'm talking about.\n\nIt is quite important that you seek medical attention as soon as possible.
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Legionnaires' Disease is caused by  Legionella pneumophila.  It casuses pneumonia and typicall abdominal cramping.  It typically grows in air vents with moisture.  You can read more of it here: http://www.bbc.co.uk/dna/h2g2/A882371
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Pneumonia is an infection of the lung that can be caused by nearly any class of organism known to cause human infections. These include bacteria, amoebae, virus- es, fungi, and parasites. In the United States, pneumonia is the sixth most common disease leading to death; 2 million Americans develop pneumonia each year, and 40,000–70,000 die from it. Pneumonia is also the most common fatal infection acquired by already hospitalized patients. In developing countries, pneumonia ties with diarrhea as the most common cause of death. Even in nonfatal cases, pneumonia is a significant economic burden on the health care system. One study estimates that people in the American workforce who develop pneumonia cost employers five times as much in health care as the average worker. Pneumonia is suspected in any patient who has fever, cough, chest pain, shortness of breath, and increased respirations (number of breaths per minute). Fever with a shaking chill is even more suspicious. Many patients cough up clumps of sputum, commonly known as spit. These secretions are produced in the alveoli during an infection or other inflammatory condition. They may appear streaked with pus or blood. Severe pneumonia results in the signs of oxygen deprivation. This includes blue appearance of the nail beds or lips (cyanosis).
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Antibiotics (often double or triple drug therapy) along with aggressive surgical removal of the diseased tissue is required immediately for an optimal outcome. Without early treatment, bacterial infection enters the bloodstream and can cause delirium, heart attack, respiratory failure, and death.
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Anthrax is a bacteria that releases a toxin.  The toxin forces macrophages to release huge amounts of interleukin 1, a signaling molecule that causes shock and death in excessive amounts by lowering the blood pressure way too much.
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Sepsis (in Greek Σήψις, putrefaction) is a serious medical condition caused by a severe infection. The more critical subsets of sepsis include severe sepsis (sepsis with acute organ dysfunction) and septic shock (sepsis with refractory arterial hypotension). If a proven source of infection is lacking but the other criteria of sepsis are met the condition typically meets the criteria for systemic inflammatory response syndrome (SIRS); the exception is the condition greater than 10% band forms (this is not a part of the SIRS definition).\n\nSepticemia is sepsis of the bloodstream caused by bacteremia, which is the presence of bacteria in the bloodstream. The term septicemia is also used to refer to sepsis in general.\nSepsis can occur when there is an invasive procedure, any surgery, if the wounds are not properly tended to, or it can result from any infection in the body going untreated and teh bacteria growing out of control
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Could be an infection.
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Sounds like a bacterial infection. Need anti-biotics. Go see a Doctor
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Possible urinary tract infection or prostate problem.
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This is the cold and flu season, but that does seem a little excessive. You should speak with your physician about doing a CBC, CMP, SedRate, and ANA to see if there are any abnormalities. These are blood test that are fairly simple to perform and you should have the results quickly. The CBC can help in diagnosing what type of infection you have depending on which WBC's are elevated and the CMP can help to diagnose if you are not getting the proper nutrition. The SedRate and ANA can help to detect inflammatory conditions that may be underlying.
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Here is a short answer for you.  :)\n\nGram negative bacteria have a lipopolysaccharide (LPS) molecule attached to their outer cell membrane.  LPS is an endotoxin that triggers an immune response in the form of fever and eventually shock as the toxin accumulates in the bloodstream.  \n\nGram positive bacteria do not have LPS.\n\nP.S.  There is no such species as Pseudomonas aureus  :)
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lower temperatures help inibit the proliferation of pathogens (bacteria)