First of all we should try and explain what influenza (flu) is. There are three main types: A, B and C, with B and C only infecting humans and influenza A being able to infect humans, animals and birds. The surface of each influenza A virus contains two types of protein, neuraminidase (N), of which there are nine types, and haemagglutinin (H), of which there are sixteen types. Consequently, there are lots of sub-strains of the influenza A virus and they are given names depending on the type of proteins found on the surface. Examples of these sub-strains could be H1N1, H1N2 and H2N3.

Another characteristic of the A strain is that it has the ability to produce new strains – in other words, mutate. It is as these new strains occur that new types of flu are discovered.

Bird flu is a strain of influenza A that affects birds, of which all species can be affected. Whereas wild birds can carry the disease when they migrate, they don’t usually become ill with it whereas poultry birds like turkeys and chickens do become ill. The virus spreads easily between these birds.

Bird Flu

It is the H5N1 virus that is causing all the problems with humans at the moment. This strain has affected birds for almost half a century, but it mutated back in 1997 in the Far East and spread to humans. As of yet this strain of the virus cannot be transferred from human to human, only from bird to bird or sometime bird to human.

Psoriasis is a skin condition which can start at any age but usually starts after puberty. Skin cells are produced by the body and as new cells are produced the older ones on the outer layer of the skin die and flake off.  This process usually takes between 21 to 28 days, but for someone with psoriasis, the process is accelerated and can occur in as little as six days.  This results in an excess of skin cells building up on the surface of the skin which are then shed easily.  Psoriasis can occur anywhere on the body and appears as red, crumbling patches of skin.  The most common places on the body where psoriasis is found are the scalp, knees, elbows or lower back.

There are many treatments for psoriasis but no cure.  Symptoms can be mild in one person but extremely severe in others and can cause distress.  Psoriasis can be mild at some times and then flare up.  There are different types of psoriasis and most people only have one type at a time but find that one type can develop into another type.  The most common types of psoriasis are plaque psoriasis, nail psoriasis, guttate psoriasis, scalp psoriasis and inverse psoriasis.  There are rarer forms of psoriasis called pustular psoriasis and erythrodermic psoriasis.  Pustular psoriasis causes pus-filled blisters to appear on the skin, while erythrodermic psoriasis causes a rash to appear all over the body and can result in the body losing proteins and fluids.

Psoriasis

There are some factors which can trigger a flare up of psoriasis symptoms such as smoking, stress, alcohol, and some medicines.  There are three types of treatment for psoriasis and these are creams and ointments, lights which the skin can be exposed to and oral or injected medication.

Anemia occurs when a person’s red blood cell count falls under normal numbers. Red blood cells in the body are responsible for transporting oxygen from the lungs so when these numbers start to fall, an anemic person may start to feel tired and lethargic due to a lack of oxygen.

There are many causes of anemia and for a doctor or physician to treat it, the cause has to be known. Some of the most common causes of the condition include iron deficiency, blood loss, disease, poor diet and reaction to certain medications or medical procedures.

If someone contracts anemia, they could have it in either mild or severe form, as well as having a temporary or chronic anemic condition. In the very serious cases it can create such oxygen deficiency in the body’s organs that it can lead to heart attacks and death. Symptoms of the condition could initially be unnoticeable but obviously increase as the condition gets worse. Some of these symptoms include dizziness, confusion, fatigue, tiredness, headaches and paleness.

Of all the types of anemia around, the most common are the result of iron deficiency. Therefore, the people most at risk are women that suffer from heavy periods, women that are pregnant and people that suffer from internal bleeding due to a variety of conditions.

Symptoms of Anemia

Anemia can be treated, depending on the initial cause. These treatments could be something as simple as dietary changes and exercise or at the other end of the scale, injections or blood transfusions.