The tropical disease cholera, characterized ...

Many human infections are caused by a bacteria or viruses. Bacteria are tiny single-celled organisms, as some researchers have associated with plants. They are among the most successful forms of life on the planet, and habitat selection of ice slopes of the desert. Bacteria can be useful, for example, intestinal bacteria help us digest food, but some of them responsible for a variety of infections. These pathogenic variety known as pathogenic bacteria. Many bacterial infections can be treated successfully with appropriate antibiotics, but antibiotic-resistant strains begin to appear. Immunization is available to prevent many important bacterial diseases. The virus has less bacteria that can multiply only inside living cell hosts. It is very difficult to kill the virus. That's why some of the most serious infectious diseases known to medical science viral origin. To cause disease, pathogenic bacteria

to access the body. The range of access roads for bacteria include:

indirectly, touching contaminated surfaces such as faucets, toilet handles, toys and diapers. Contact with infected body fluids through activities such as sexual intercourse or needle sharing hypodermic. Forgetting to wash your hands after contact with pets and animals is another way for germs to be taken by mouth. Bacteria that cause disease commonly classified according to their shape. Four main groups:

bacilli form of rod length of about 0. 03mm. Diseases like typhoid and cystitis caused by strains of bacteria. Coccus form balls with a diameter of about 0. 001mm. Depending on variety, cocci bacteria are grouped in various forms, eg, in pairs, long lines or tight clusters. Examples include

staphylococci (causing a variety of infections, including boils) and gonococci (that cause sexually transmitted infection gonorrhea). Spirochetes, as the name suggests, these bacteria are in the form of tiny spirals. Spirochetes bacteria responsible for a number of diseases, including sexually transmitted infection syphilis. Vibrio comma shape. Tropical disease cholera, is characterized by severe diarrhea and dehydration caused by the bacterium Vibrio. Most of the bacteria, but various cocci, move with a small tail attachment (flagella) or beating their bodies from side to side. Under favorable conditions, the bacteria multiply by dividing in two. Each daughter cell then divides into two and so on, so that one bacterium can bloom in a population of around 500,000 or more for only 8:00. If the environmental conditions under DONT bacteria, some varieties turn to rest. They develop a tough outer shell and wait for the changing conditions. These bacteria are called wintering spores. Disputes harder to kill than active bacteria because of their outer covering. The body reacts to bacteria, increasing local blood flow (inflammation) and send in immune cells attack and destroy bacteria. Antibodies produced by the immune system provides bacteria and aid in their destruction. They can also inactivate toxins produced by certain agents, for example, against tetanus and diphtheria. Serious infections can be treated with antibiotics that work, disrupting metabolic processes of bacteria, although antibiotic resistant strains begin to appear. Immunization is available to prevent many important bacterial diseases, such as Hemophilus influenza type B (Hib), tetanus and whooping cough .. The virus is a small pocket of the protein that contains genetic material. If you put a virus close to the bacterium, the virus will be negligible. For example, the polio virus is about 50 times less than

streptococcus bacterium, which itself is only 0. 003mm long. Viruses can be described either as RNA or DNA viruses, according to which type of nucleic acids is their major. Ikosaedricheskaya outer shell (capsid) consists of 20 flat sides, giving a spherical shape. Most of the virus icosahedron. Screw capsid is shaped rod. Enveloped capsid enclosed in baggy membrane, which can change its shape, but often spherical. Complex genetic material is covered, but not capsid. Viruses are a significant problem for the overalls of the immune system because they hide inside cells. This makes it difficult for antibodies to reach them. Some special immune cells called T lymphocytes,

recognize and kill cells containing viruses, as well as on the surface of infected cells changes when the virus begins to multiply. Many viruses go out from infected cells are efficiently killed antibodies that were made in response to infection or previous immunization. Antibiotics are powerless against viral infections. This is because viruses are so simple that they use the host cell to operate for them. Thus, antiviral strattera 10mg drugs work differently to antibiotics by interfering with viral enzymes as well. Antiviral drugs are currently the only effective against some viral diseases such as influenza, herpes, hepatitis B and C and HIV, but the investigation continues. The natural protein called interferon (which the body produces to help fight viral infections), can now be obtained in the laboratory and used to treat hepatitis C infections. It is possible to vaccinate against many serious viral infections such as measles, mumps, hepatitis A and hepatitis B. aggressive vaccination campaigns worldwide, led by the World Health Organization (WHO), managed to destroy smallpox. However, some viruses, such as those that cause the common cold can mutate from one person to another. It's like a disease essentially the same virus can keep avoiding the immune system. Vaccination for these types of viruses is difficult because the virus has changed its format to that time, a vaccine developed. Many human diseases are caused by infection or bacteria or viruses. Most bacterial diseases can be treated with antibiotics, but antibiotic-resistant strains begin to appear. Viruses are a challenge overalls immune system because they hide inside cells. It is possible to be vaccinated against some major pathogenic viruses (such as measles and polio), and bacterial diseases, such as Hemophilus influenza type B (Hib), tetanus and pertussis. .