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Emerging disease lymes disease
Emerging disease lymes disease
Epidemiological analysis of lyme disease
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Kristie Benejan
05/11/2018
Lyme Disease in the United States
Part 1: Epidemiological sheet:
• Causative Agent: Borrelia burgdorferi (2); spirochete bacteria (5)
• Route of Transmission: Via a tick bite: Ixodes scapularis (US and Canada) and Ixodes pacificus (pacific coast) (3)(5)
• Population: o United States: 96% of cases found in 14 states mainly located in the North East (including Connecticut, Maryland, Main, Delaware, and others) o International: Found in Asia (China, Korea, Japan) and Europe (Scandinavia, Germany) o Common in children ages 5-14 and adults ages 45-54 but most likely do to increase level of outdoor activities rather than immune susceptibility (5)
• Seasonality: Highest peak of cases in the months of June and July (2)
• Incidence: There about 30,000 reported cases reported to the CDC yearly (2), however, two survey studies of Clinical Laboratories in the US reported testing for Lyme Disease 2-3.4 million times with 288,000 to 329,000 positive tests annually (1)(6)
• Clinical Presentation: o Stage 1 Disease (1-30 days after bite): Localized Erythema Migrans (bullseye appearance rash) that occurs on average 7 days after tick bite. Patient may develop flu like symptoms (low grade fever, chills, myalgia) within the first week of the bite and concentric rings as the rash expands.
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He noticed the rash 4 days ago but is uncertain when it truly began. He went on a hiking retreat at Wharton state forest about two weeks ago and since then believes he has had seasonal allergies and has felt a little “hot.” Patient is in good health and does not have any medical problems. Upon examination, a rash of bull’s eye appearance measuring 7 cm in diameter was noted on the patient’s right shoulder. Serological testing was submitted for Lyme disease which were positive for the tick-borne
The incidence rate for children between 0 and 19 years old was 5.13 per 100,000. For adults over 20 years of age, the incidence rate was 26.8 per 100,000. The rate was higher in females (22.3 per 100,000) than males (18.8 per 100,000).
electric fence ticks like the slow heart of something we fed and bedded for a
...annually, aged-adjusted to the 2000 U.S. population. The incidence among young people 60 years of age and older is about 10 cases per 1,000 U.S. population annually. There are an estimated one million cases of herpes zoster in the United States every year.
Lyme disease is one of the seven most common diseases reported in the United States to the CDC annually (www.cdc.gov). The rates have gone from 10,000 cases in 1992 to over 30,000 cases in 2009. 95% of these cases were found in the northeast and Midwest regions of the United States (Committee on Lyme Disease, 2011) . More cases happen in this area of the country due to the close proximity of deer to population. The bite itself isn’t the problem, rather the pathogen being spread in mammals from the bite. Lyme disease occurs when a tick penetrates the skin of mammals and the spirochete Borrelia burgdorferi enters. Borrelia burgdorferi is carried by ticks named the Ixodes dammini, which is the main vector for Lyme disease. These may also be known as I. scapularis, and may be found on deer (Schilling-McCann, 2010). ¬¬¬In addition to Lyme Disease, ticks may also carry Rocky Mountain Spotted Fever or Tularemia (Smeltzer et al, 2010).
On average there are around 300-500 million people who become infected with malaria every year, with most of the cases occurring in sub-Saharan Africa. (in text refernce). Other areas which are affected by malaria include- Asia, Latin America and some parts of Europe.
You wouldn’t think the carrier of this disease would come from a little mosquito bite but it does.
This disease has many symptoms. These symptoms are similar or same to many other illnesses. That is the reason why many doctors get confused when they were researching this disease. There are three stages of symptoms for the disease. In the first stage, the Erythema Migrans, a bull’s eye rash might appear on the bitten area. In the second stage, the Disseminated Lyme Disease, you may experience a fever, sore throat, fatigue, headache, stiff neck, muscle ache, and general malaise. In the third stage, the Chronic Lyme Disease, you may experience aching joints.
Although this disease isnt to common there still has been some new research about this topic. About 400,000 people live with hemophilia each year while there are only about 20,000 people that live with it in America. About 400 babys are born with this disease each year in the U.S. Usually only males get this disease but it is possible for women to get it. Hemophilia is also caused by a genetic mutation. So as you can see Hemophilia is not to common.
As stated by the CDC, “worldwide, it is estimated that TB infects 1 million children who are less than 15 years of age each year. In the United States, a total of 9,582 cases of TB were reported in 2013, of which 485 (5%) cases were among children less than 15 years of age” (CDC, 2013).
After a few days after developing a rash, it may change into small lumps all over the body. These symptoms may come just after a week of being infected. "The first symptoms may appear 12 to 14 days after you're infected." A rash will appear in the mouth and throat in the first few days, it will then spread to the face and arms and finally, the legs. The rashes will grow bigger as days go by, eventually transforming into large bumps filled with puss and fluid. Then these bumps are replaced with blisters, which will drop off and that indicates that the person has become infected and can possibly spread the disease.
"Maps and Statistics." Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 23 Apr. 2013. Web. 03 May 2014. .
More than 17 million Americans suffer from asthma, with nearly 5 million cases occurring in children under age 18. In the United States, asthma causes nearly 5,500 deaths each year. Asthma occurs in males and females of all ages, ethnic groups, and socioeconomic levels. For reasons not completely understood, asthma is generally more common in poor urban neighborhoods, in cold climates, and in industrialized countries.
CDC - Data & Statistics. Centers for Disease Control and Prevention (CDC), 30 June 2010. Web. 26 July 2010. .
The virus is spread by animals. Warm blooded animals are required to transmit the virus and the disease is almost always fatal (CDC). It is passed through saliva from the host to the victim also through mucous membranes like the eyes or nose. Yet the most common ways of transition is through a bite with the virus containing saliva. The main animals that hold the virus are: skunk, fox, bat, raccoon, and the coyote (CDC). These wild animals account for 93% of the cases in the United States. The raccoon still leads as the major carrier and the animal is domestic in the Eastern United States. The skunk is native to the inland states, parts of Texas to Montana and all the way to Wyoming. The fox and the coyote are both native to the Mid Southern US, and the fox is also spotted in Alaska along the coast. Although not heard of lately, bats are a big carrier of the virus. They are common in most of the states except Hawaii (WebMD.com). The bats have also spread though out the world, and most recently in Australia. Australia was once free of rabies until rabid bats were found there recently (Mayo Clinic Proceedings). The virus can also be spread to domesticated animals, and most cases are reported in the summer and fall months. The three major domesticated animals are: cats, dogs, and cattle.
States, we still see it happening in our own towns and cities all through America. Each year there