Case Study: Cryptosporidiosis Outbreak

The graph shows a linear relationship between light intensity between 0-150 µmoles photons m-2s-1 until the rate of oxygen production slowed between 150-350

An investigation was necessary to find the cause of the outbreak, and how to stop it from continuing to spread. The campus clinic was interested in testing the following nine patients: Sue, Jill, Anthony, Wanda, Maggie, Maria, Arnie, Marco, and Alvin. All of the students have similar symptoms and agreed to being tested except for Alvin.

Figure 1: Amount of O2 gas curves to the time at which it was measured according to low, medium, and high pH.

Answer = The first part of the graph resembles a bell shape. At the latter part of the graph it takes a sharp increase.

3) What do the rate of change values you just calculated represent? Why are some positive and some negative?

Slide 16: This curve demonstrates a one-tail hypothesis with the critical region representing 5% showing a positive relationship.

The lines would start by going up until it gets to 12 then would begin to bounce around from increase to decrease.

Question 1: What is the incubation period for cyclosporiasis? How will it be used in the investigation?

In August of last year, an adult in Pueblo County, Colorado succumbed to the bubonic plague. The Health Department did not specify who it was, just saying that it was an adult. This was the first case of someone contracting the plague in Pueblo County since 2004. It is thought that the person caught the disease from fleas on a dead animal. According to the CDC, about seven people every year contract the plague in the United States.

Two identical concepts can be received in two completely different ways depending on the manner they are presented in. In Civil Disobedience, Henry David Thoreau puts forward his argument that the only way to stop the immoral ways of the American government is by taking immediate action. The same belief is portrayed in a more emotional approach in Letter From a Birmingham Jail, Martin Luther King, Jr.. Although both focus on equivalent concepts, their presentation separates them into two different categories, with Letter From a Birmingham Jail being clearly superior to the other.

A common source outbreak is an outbreak that affects a number of people being exposed to a common pathogen agent or toxin. Back in early 1993 more than 400,000 people were affected with waterborne cryptosporidium infection in the greater Milwaukee area. This massive outbreak was transmitted through the public water supply, caused abdominal cramping, nausea, vomiting, and fever which resulted in watery diarrhoea.

Cryptosporidium parvum is a protozoan intestinal parasite causing a short-term enteric illness in individuals with functioning immune systems, and can cause a potentially fatal infection in immunosuppressed individuals. Because of C. parvum’s resistance to many of the procedures used to process drinking water and food, and the parasite’s extremely high fecundity, the potential for a large scale outbreak is very high. In fact, C. parvum was responsible for an outbreak in Milwaukee in 1993 when an estimated 403,000 people became ill. This was the largest waterborne outbreak of disease in United States history. This paper will cover some aspects of C. parvum’s life cycle, human sickness

Poor hand hygiene - spread of germs from one patient to another or spread for hands to surfaces.

* Given linear and exponential data, interpret the rate of change within the given context.

In response to these comments, it was then that the FDA added three additional pathogens to the list of qualifying pathogens: Coccidiodes species, Cryptococcus species, and Helicobacter pylori. Coccidiosis species, Cryptococcus species, and Helicobacter pylori. Coccidiosis is a disease caused by fungi from the genes of Cryptococcus that affect living organisms such as humans and animals. Living organisms usually contract this by inhaling the fungi, thus resulting in lung infection that can travel to the brain causing further harm for the organism. Two individuals were first identified with the fungus between 1894 and 1895. The Cryptococci’s can be found worldwide. The main way that disease is spread is also through inhalation with the particular fungus that happens to be associated with several species of bird, particularly old pigeon waste and bat guano.