What the Tick? Tick Born Diseases in AmericaIntroduction
Part predator, part parasite, the tick is considered by many as America’s most harmful bug. Living in humid and overgrown areas, these critters make rural America more prone to acquiring the various diseases these ticks carry. From Lyme disease to Rocky Mountain Spotted Fever, ticks are the proliferators of zoonotic diseases in North America (Edlow, 2004). These diseases do not have vaccines and are difficult to manage once the person is infected. This essay will cover tick-borne diseases, why they became such a major issue in recent times, existing treatment for the infections, and predictions of epidemics.
Background
There are 20+ tick borne diseases in the U.S.A. Of the most reported, Lyme disease infects an estimated 300,000 people annually (National Academies of Sciences, Engineering, and Medicine, Health and Medicine Division, Board on Global Health, Forum on Microbial Threats, 2016). In fact, it was not until the spread of Lyme disease that ticks were not considered a major threat. This is because humans did not often pursue outdoor recreational activities and were living in suburban or urban areas (Danbom, 2017). However, as more people move into rural areas and go outside into nature more, the risk of tick-borne diseases has grown. Hence the new worry of scientists and those aiming to understand the spread of tick-borne diseases, of an even bigger outbreak in the future (Danbom, 2017). With more cases each year, and a growing number of people with Lyme disease, it is important to understand why these infections continue and what can be done to decrease exposure to tick bites.
One of the reasons some believe tick-borne diseases are on the rise is due to climate change. However, a recent study suggests the warming temperatures may reduce pathogen densities in a tick bite.
Several studies have shown that replication rates of mosquito-borne pathogens increase with temperature, but we are aware of no studies addressing this issue for tick-borne pathogens. Alternatively, the immune responses of many invertebrates are temperature sensitive, so it is possible that ticks will be more likely to reduce pathogen densities or even clear their infections at warmer temperatures (Ostfeld & Brunner, 2015, p. 18).
This means that although climate change is an issue, it is not one that could exacerbate the prevalence of tick bites. The issue then resides in the increase of time people spend outdoors and the increase in people living in rural areas. People have begun in the last two decades to move deeper into the American south, into rural areas where the humidity, large vegetation growth make it easier for people to expose themselves to ticks (Danbom, 2017).
While numerous groups are working towards eradication of tick-borne diseases, there are efforts in developing vaccines. These efforts have produced some progress. However, there is still no definitive vaccine available for major tick-borne diseases like Lyme disease. “Both vaccine classes were similarly highly immunogenic. A new vaccine with high...
Our semester plans gives you unlimited, unrestricted access to our entire library of resources —writing tools, guides, example essays, tutorials, class notes, and more.
Get Started Now