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Search results 151 - 160 of 291 matching essays
- 151: Strep Throat
- ... possible to tell if a sore throat is caused by strep from just looking at the throat itself with the naked eye. The symptoms of strep throat can resemble the sore throat caused by many viruses. In fact, most sore throats are not strep, but are merely sore throats caused by viruses. So, in order to tell if a sore throat is in fact strep, a throat culture is needed. There are a few symptoms of strep throat. First, a significant fever of about 101 degrees Fahrenheit ...
- 152: Antibiotics
- ... are chemical substances produced by various species of microorganisms and other living systems that are capable in small concentrations of inhibiting the growth of or killing bacteria and other microorganisms. These organisms can be bacteria, viruses, fungi, or animals called protozoa. A particular group of these agents is made up of drugs called antibiotics, from the Greek word anti ("against") and bios ("life"). Some antibiotics are produced from living organisms such ... the feed of animals. Chickens and beef cattle, for example, can be fed with these additives for better weight gains and to speed their growth. Current work in antibiotics is largely in the area of viruses. Although some antivirals are available, most have toxic effects so severe that they can be used only in life-threatening diseases where the negative effects are the lesser danger. Preliminary studies, however, are reporting success ...
- 153: AIDS
- ... rare outside of Africa. Little is known about the biological and geographical origins of HIV. Apparently, however, this is the first time in modern history that the virus has spread widely among human beings. Related viruses have been observed in animal populations, such as certain African monkeys, but these do not produce disease in humans. The Nature of the Virus HIV is an RNA RETROVIRUS. Viewed in an electron microscope, it ... of death. Other infections include the parasites Toxoplasma gondii (see TOXOPLASMOSIS) and Cryptosporidiosis; fungi such as Candida (see CANDIDIASIS) and Cryptococcus (see FUNGUS DISEASES); mycobacteria such as Mycobacterium avium, intracellulare, and tuberculosis (see TUBERCULOSIS); and viruses such as cytomegalovirus and herpes simplex and zoster (see HERPES). Increased susceptibility to bacterial infection is noted particularly among children with AIDS. Many AIDS patients develop CANCERS, including Kaposi's sarcoma (KS), non-Hodgkin's ...
- 154: The Differences and Similarities of Pneumonia and Tuberculosis
- ... the blood stream (MedicineNet, 1997) which can lead to secondary infections. Viral pneumonia accounts for half of all pneumonia cases (American Lung Association, 1996) unfortunately there is no effective treatment because antibiotics do not affect viruses. Many viral pneumonia cases are a result of an influenza infection and commonly affect children, however they are not usually serious and last only a short time (American Lung Association, 1996). The "virus invades the ... that may result in symptoms of bacterial pneumonia (American Lung Association, 1996). During World War II mycoplasma were identified as the "smallest free- living agents of disease in humankind, unclassified as to whether bacteria or viruses, but having characteristics of both" (American Lung Association, 1996). Mycoplasma pneumonia is "often a slowly developing infection" (MedicineNet, 1997) that often affects older children and young adults (American Lung Association, 1996). The other main cause ...
- 155: Sexual Transmitted Diseases Defined
- ... contact. The virus causes blisters on the genitals, similar to the cold sores that occur on the mouth. Cold sores on the mouth are also caused by the herpes virus. These infections are caused by viruses cures are not available. It has been estimated that approximately 1 in 6 people in Australia has had a history of genital herpes at some time. Not all people infected with the herpes virus will ... It is not hard to avoid getting STDs. The risk can be reduced by using condoms during vaginal or anal sex. Scientific research has shown that latex condoms are an effective against HIV and the viruses and bacteria that causes STDs. Condoms, will only protect you against disease if you use them every time you have sex. Sometimes is not good enough. Another way to avoid STDs not to have sex ...
- 156: Ebola
- Ebola Ebola hemorrahagic fever is a 20 year old virus that, with a mortality rate of 50% to 90%, is one of the world's deadliest viruses. Its causative organism is called Ebola virus. Ebola virus is a member of filoviridae, a family of negative-strained RNA viruses. The filoviridae family consists of five known members, Marburg, Ebola Zaire, Ebola Sudan, Ebola Reston, and Ebola Tai. Ebola virus is spread in a number of ways. An outbreak starts when an infected animal or ...
- 157: Antibiotics
- ... extend life expectancy. Right now, there is more than 70 different kinds of antibiotics in use. Most antibiotics are used to treat infections, some for fungi and protozoa, but antibiotics are not usually effective against viruses. So they have developed other methods such as vaccines against viruses. Antibiotics work by one of three ways, they can one, prevent the cell wall from growing; two, obstruct the cell membrane; or three disrupt the chemical processes. When the antibiotic prevents the cell wall from ...
- 158: AIDS/HIV
- ... star Magic Johnson also reported having AIDS. The approximate number of AIDS cases in the U.S. alone is 65,000 and growing. So far, there is no treatment or vaccination for AIDS. With most viruses, the body produces antibodies that eventually destroy the virus. However, with HIV, natural antibodies are completely ineffective. Blood tests will not give accurate results of infection of HIV until between 2 weeks and 3 months ... In 1992 DDC (zalcitbine) was found to be useful for delaying the reproduction of HIV in patients with advanced AIDS, but only in conjunction with AZT. AIDS is one of an epidemic of super-deadly viruses like Ebola, Hanta Virus, and Dingae in Puerto Rico. In my opinion, this is natureΉs way of fighting back from overpopulation. However, AIDS is a formidable disease and is a force to be reckoned ...
- 159: AIDS:Is There a Cure? Are There Preventions?
- ... by such means as swimming pools, kissing, toilet seats, etc. "...it's important to remember that the AIDS virus doesn't live in the air or on things we touch, the way cold or flu viruses do. (Madaras,186) There have been no cases recorded where the infection was caused by casual contact. The part of your body that the AIDS virus kills is your immune system as mentioned before, but ... cripples your white blood cells. A common symptom AIDS patients get is developing rare types of skin cancer. (Aids:Everything you should know,movie,AIMS,1989) Really AIDS doesn't kill you--other germs or viruses do because when they enter the body there is no immune system to protect your body so they can live freely. (Samuel,27) There is no 100% sure way to prevent AIDS, and there is ...
- 160: Antibiotics
- ... extend life expectancy. Right now, there is more than 70 different kinds of antibiotics in use. Most antibiotics are used to treat infections, some for fungi and protozoa, but antibiotics are not usually effective against viruses. So they have developed other methods such as vaccines against viruses. Antibiotics work by one of three ways, they can one, prevent the cell wall from growing; two, obstruct the cell membrane; or three disrupt the chemical processes. When the antibiotic prevents the cell wall from ...
Search results 151 - 160 of 291 matching essays
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