Miscellaneous enterics include the Gram-negative genera such as Klebsiella, Enterobacter, Proteus, Citrobacter, Aerobacter, Providencia and Serratia discovered and identified with the help of microscopy using a microscope like the binocular compound microscope. These rod-shaped enteric or intestinal bacteria have been alleged of causing acute and chronic gastrointestinal illness based on examinations done via microscopy under the microscope like the binocular compound microscope. The organisms may be obtained from natural environments like forests and freshwater as well as from farm products such as vegetables where they inhabit as normal microflora, which can only be seen under the microscope such as binocular compound microscope. They may be acquired from the feces of healthy people without illness symptoms. The relative quantity of pathogenic to nonpathogenic strains is not known.

Gastroenteritis is the name being called to the disease infrequently and irregularly triggered by these genera. Acute gastroenteritis is typified by two or more of the manifestations of vomiting, abdominal pain, nausea, chills, fever and watery or dehydrating diarrhea transpiring in twelve to twenty-four hours after consumption of infected food or water. Chronic diarrheal illness is typified by dysenteric signs such as foul-smelling, mucus-containing, diarrheic stool with flatulence and abdominal distention. The chronic illness may stay for months and need antibiotic treatment.

Infective dose of the organisms is not yet known. Both the acute and chronic types of the illness are alleged to result from the amplification of enterotoxins. These organisms may turn momentarily virulent by gaining mobilizeable genetic elements from other pathogens. For an instance, pathogenic Citrobacter freundii, which elaborated a toxin that is similar to Escherichia coli, which is a heat-stable toxin, was isolated from the feces of sick children as ascertained by microscopy using a binocular compound microscope.

Obtaining methods and detection techniques for these organisms from food, water or diarrheal specimens are based upon the efficiency of selective media and outcomes of microbiological and biochemical assays, which are done with the aid of microscopy using a microscope such as binocular compound microscope. The capability to generate enterotoxins may be detected by cell culture assay and animal bioassays, serological processes, or genetic probes.

These bacteria have been found from dairy products, and uncooked shellfish and vegetables as samples were examined by means of microscopy using a binocular compound microscope. The organisms transpire in soils utilized for crop generation and shellfish harvesting waters and, hence, may pose a health hazard.

Acute gastrointestinal disease may happen more often in developing countries. The chronic disease is typical in malnourished children living in unhygienic conditions in tropical nations. Healthy people recuperate rapidly and without treatment from the acute type of gastrointestinal illness. Malnourished children between one to four years old and babies who experience chronic diarrhea soon form structural and functional deformities of their intestinal tracts resulting in loss of capability to absorb nutrients. Death is common in these children and results in some way from the chronic toxigenic effects that generate the malabsorption and malnutrition. All humans may be vulnerable to pathogenic forms of these bacteria. Prolonged disease is more typically experienced by the very young. These strains are obtained by standard selective and differential isolation processes for enteric bacteria. Biochemical and in vitro assays can be utilized to detect species and pathogenic potential through the help of microscopy. Not being commonly thought of as human pathogens, they may easily be overlooked by the clinical microbiology laboratory.