Cryptosporidium Essay Example | Topics and Well Written Essays - 500 words

Cryptosporidium - Essay Example The division of the organism occurs rapidly with 12-14 hours being the time taken for one generation. This rapid division results in large accumulation of the organism within the intestinal tract of the hosts beginning with the ileum and followed by infection of the duodenum and the large intestine. In case of individuals with a suppressed immune system the organism can also colonize in the stomach, biliary and pancreatic ducts and respiratory tracts. The major clinical signs of cryptosporidiosis are watery diarrhea, loss of weight and cramping of the abdominal region, nausea, vomiting, anorexia and headache. Individual can also have a low-grade fever during the infection stage. In addition, immunocompressed individuals can also suffer from electrolyte imbalance. The time taken for the oocytes to be shed in the feces is about 4 days and they can be shed in the feces for 6-12 days in case of healthy individuals and for a longer period in immunicompressed people (Aquatic pathogens). In the case of healthy individuals, the organism will generally disappear within a month of infection. In case there is severe diarrhea and dehydration anti-diarrheal drugs and rehydration therapy is given to patients. The treatment regimen for immunocompressed individuals could be more elaborate especially when the infection becomes chronic resulting in chronic diarrhea, dehydration, wasting and even death (Aquatic pathogens). As the diease is principally a water-borne disease, the parasite can exist in untreated water which is contaminated with the feces or other sources containing the organism. Proper water treatment methods undertaken by municipal and public water carriers can help to disinfect the water and kill the organism. As the organism is resistant to chlorine treatment, the watersheds can be protected through hygienic maintenance and proper coagulation and filtration methods. Use of ozone or UV radiations for water treatment can also provide additional

Critique Essay Example | Topics and Well Written Essays - 500 words

Critique - Essay Example The paper under consideration was one of his initial developments about the subject, and was recognized, and published in the Journal of Genetic Psychology in the year 1996. Summary This paper leads to the awareness of Attention Deficit Hyperactivity Disorder (later referred to as ADHD in this critique), primarily by means of discussing the various theories associated to ADHD and the possible adaptive function. The author agrees to the fact that no single theory succeeds at explaining the occurrence and presence of ADHD. Previously, however, it might have served as an adaptive function. The need for analyzing this issue comes from a clear pattern that shows distinctive behavioral changes amongst children, and some of them continue to show the same for longer periods of times. The research paper shows clear facts that approximately 5% of the school aged children are affected by ADHD and some half of these stabilize towards complete disorder in the later part of their ages. Identifying the need of this research by stating these facts and the need to understand this issue, the author then moves towards identifying the clinical features i.e. the symptoms of this issue leading towards the disorder. The author then refers to the biology of ADHD, where he describes the genetic reasoning of the issue.