Conjunctivitis, or pink eye as it is sometimes known as, is an inflammation that affects the outer lining of the eyes. The condition is caused by bacteria or virus’ but can also affect people due to allergies or exposure to certain chemicals. Anyone can catch conjunctivitis but those closest to a sufferer are more at risk of contracting it than others.

When someone has conjunctivitis, all the fluid in the infected individuals eyes are very contagious, therefore the condition can easily be spread from one person to another via contaminated fingers, towels or clothes and through items such as sunglasses and makeup.

Conjunctivitis

Symptoms of conjunctivitis include redness in the white areas of the eyes, a scratchy sensation in the eyes, swollen eyelids that often feel itchy and “heavy” feeling eyes full of tears. The symptoms usually occur from 24 to 72 hours after infection and can last for several days.

Treatment of the condition depends on the cause, but a severe or chronic cased should be referred to a physician immediately. Prevention of conjunctivitis is always the best cure, so washing hands frequently as well as keeping them away from the eyes, not sharing towels, flannels or handkerchiefs with anybody and using fresh paper toweling to wipe the eyes if necessary and then discarding straight away, are all things to do to help prevent the spread of the condition.

HIV, or human immunodeficiency virus, is the virus which can lead to AIDS. There are many ways to contract this virus, with the most common being through unprotected sex and the sharing of needles.

People who are infected with HIV may initially not realize there is anything wrong with them as they do not show any symptoms. Nevertheless, some people tend to develop some flu like symptoms which can last for several weeks. Some of these symptoms may include fever, tiredness, loss of appetite, aching muscles and joints, rashes and swollen lymph glands.

HIV Virus Structure

When the virus enters the body, it takes residence in white blood cells that are known as CD4 lymphocytes. The virus takes total control of these cells and starts producing billions of replicas of itself every day.

Once infection of HIV occurs, the body starts to attack the virus and because of this the virus cannot make any copies of itself. This in turn leads to a false sense of wellness as although one would still have HIV, the infected person will begin to look and feel better. Unfortunately, during this period the virus is still attacking the lymph nodes, which are the body’s immune system center.

During the course of ten to fifteen years, the HIV manages to kill so many of the CD4 cells that the body no longer has the ability to fight off infections. Once the CD4 cell count drops below a certain number (200 or lower per mL – the average is 600 to 1000) the sufferer is classed as having AIDS (acquired immunodeficiency syndrome). Once a person has AIDS, the risk of infection form almost anything can cause fatal complications.

HIV Virus Cycle

Hay fever can be described as an allergy caused by pollen. Pollen is the very fine powdery substance created by plants for the use in pollination, or fertilization. In its most common guise, hay fever is the allergy caused by grass or hay pollens and usually occurs from late spring until early summer.

Usual symptoms of the condition include a runny nose, sneezing, and streaming, itchy eyes. The symptoms are caused due to the body’s immune system reacting to the pollen. Cells which line the nose and eyes tend to release chemicals such as histamines when they come into contact with the pollen, and this causes the inflammation in the eyes and nose which produce the symptoms.

Hay Fever

Hay fever is a very common allergy and affects almost two in every ten people in western society. It usually develops in children of school age and teenage years and the symptoms reappear year after year. Eventually, the symptoms start to decrease over the course of many years, until the condition either disappears totally, or improves vastly. The condition usually runs in families and an individual is more likely to develop asthma or eczema if they already suffer from hay fever.

Although it’s impossible to avoid pollen totally, symptoms are less severe if exposure is reduced. Nowadays pollen counts are freely available for all regions via TV, radio and the internet. Sufferers of the condition are normally treated with antihistamine tablets, antihistamine nose sprays, steroidal nose sprays and eye drops.