- Viruses are infectious agents made up of genetic material. (DNA or RNA) that is surrounded by a protein coat (CAPSID) .
- Viruses incorporate themselves into cells .
- Viruses are tiny and can only be seen with an election microscope .
- Viruses can only reproduce and carry our metabolic functions when they are inside a host cell.
- Viruses can remain dormant for a long time, either outside or inside of the host cell. (eg. chicken pox) .
- Viruses cause diseases by infecting a host cell. .
- To produce new copies of a virus, it must use the host cell's reproductive "machinery." Viruses can then leave the.
host cell, killing it and proceed to infect other cells within the host organism.
- Viruses can infect plants, animals and bacteria. .
VIRAL INFECTION AND REPRODUCTION .
- Lytic Cycle: process which the virus multiplies and destroys the host cell. .
- Lysogenic Cycle: process which the virus multiplies with the host cell and gets passed into the daughter cells.
- Some Examples of Illnesses: AIDS, Chicken Pox, Small Pox, Hepatatis .
- Protection against and treatment of viral infections .
- Good health.
- Vaccination .
- Antibiotics cannot be used to treat viral infections, but there are anti viral meds that can treat it.
VACCINES AND VACCINATION .
- Vaccines protect us from serious effects of infectious diseases, by preparing our body to defend itself against the.
infectious agent, by building immunity. .
- Importance of vaccination- Immunized children help protect the health of the community, it helps stop the spread.
of the disease among those who are vulnerable.
- Types of Immunity: .
A) Innate/ Natural Immunity: born with it, many viruses that affect other species do not affect them. .
B) Passive Immunity: receiving antibodies from another source. Lasts for a short period of time because no immune.
response is generated. eg: maternal antibodies .
C) Adaptive Immunity: Develops throughout our lives, results to pathogens.
DTaP is a bacterial infection. ... For many years this vaccine had been given orally in drops as a live virus. ... Hepatitis B is spread through direct contact with the virus in blood or other body fluids. ... Some illnesses may include bacterial skin infections, ear infections. ... Varicella vaccine has a 95% efficacy against infection. ...
Hepatitis B is a very serious liver infection that can lead to liver cancer and sometimes even death. ... Hepatitis is an inflammation of the liver caused by a virus, a bacterial infection, or injury from overwhelming amounts of alcohol, drugs, or environmental poisons. ... Those children born to a mother carrying the Hepatitis B virus. ... Hepatitis B is a public health problem because of the acute illness, the long-term disability, and the increased rate of liver cancer resulting from chronic infection. ... The Hepatitis B immunization vaccine is also available for those people in high risks...
Hepatitis B is a very serious liver infection that can lead to liver cancer and sometimes even death. ... Hepatitis is an inflammation of the liver caused by a virus, a bacterial infection, or injury from overwhelming amounts of alcohol, drugs, or environmental poisons. ... Those children born to a mother carrying the Hepatitis B virus. ... Hepatitis B is a public health problem because of the acute illness, the long-term disability, and the increased rate of liver cancer resulting from chronic infection. ... The Hepatitis B immunization vaccine is also available for those people in high risks...
The infection of humans through the transmission of the bat lyssavirus, which has caused deaths in Europe and Australia in the past three decades, can be prevented by immunization. Therefore, the immunization of all bat handlers is strongly advised. ... The passive surveillance program was used obtain numerical data representing the cases of infection in Europe and the United Kingdom. ... However, many approaches could have been taken in order to prove the effectiveness of the rabies vaccination and therefore validate the article's point that immunization of all bat handlers will preve...
Meningitis can be caused by a viral or bacterial infection. Viral meningitis is more common and can be caused by many different viruses but is most commonly caused by an entrovirus. ... The number of infections caused by the bacteria has dropped significantly. ... Some college officials say that all students should consider immunization. ... The UK wants all children 19 and under immunized. ...
AIDS (acquired immune deficiency syndrome) is a specific group of diseases or conditions that result in the suppression of the immune system related to infection with HIV (human immunodeficiency virus) (Murill 1). ... The person may have very low T-cell levels with infections that identify AIDS. ... They are trying to find an effective immunization that could be either protective or therapeutic. If it were protective it would prevent infection if an immunized person were exposed to the virus. ... This DNA vaccine should generate antibodies to the AIDS virus and activate immune cells tha...
This virus is also a disease to humans. ... After that happens the virus is condemned to spread for about eight days. ... The most common complication is an ear infection (Measles: Complications, para 1). Sometimes the ear infection can become so bad that the infected person can risk having permanent hearing loss. ... Non-immunized people, including infants, may be given the measles vaccination within 72 hours of exposure to the measles virus to provide protection against the disease (Measles: Treatment, para 1). ...