Everyone, at some point in their life, have experienced getting sick from another human being. Whether it was contracting chicken pox playing kickball in elementary school or kissing a significant other, it is not uncommon to contract an infectious disease from another person.
A disease is defined as an abnormal condition of an organism that impairs bodily functions, usually indicated by specific symptoms and signs. Infectious diseases, in particular, are caused by external factors such as viruses, bacteria, and other harmful pathogens. It may be as simple as the coughing of co-worker or carelessness in the hospital that can cause you to contract an infectious disease. These diseases range from the common cold to deadly sexually transmitted diseases.
Infectious diseases may seem like an omnipresent part of human life, but there are definitely steps that you can take to avoid contracting such infectious diseases. Being careful and conscious of your safety, along with knowing your surrounding environment can help you avoid contract an infectious disease. Your skin is the main defensive mechanism against infectious diseases, but some diseases will find other ways to enter your body.
The rest of this article will give you tips on how to avoid contracting infectious diseases. Follow these tips to change your behavior and avoid the spread and contraction of these diseases. Read more »
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Posted in medicalmatrix | February 13, 2010 | 
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One of the primary concerns is that the virus could quickly spread across countries as various birds follow their migration routes. In response, countries have begun planning in anticipation of an outbreak. While short-term strategies to deal with an outbreak focus on limiting travel and culling and vaccinating poultry, long-term strategies require substantial changes in the lifestyles of the most at-risk populations.
WHO announced on November, 16, 2005 that an outbreak is most likely to hit the Hong Kong Special Administrative issue by mid-December of this year. “If it were to hit in a highly residential area like Tin Hau, it would be sure to spread like wildfire.” Dr. N Column, Head of Epidemic Prevention announced.
The WHO divides a pandemic into six phases, ranging from minimal risk of an outbreak to full scale pandemic. Most health authorities categorize the situation as of 2005 at Phase 3, by which is meant that human infections of a new sub-type has occurred but there is little evidence of sustained human-to-human transmission.
Avian Influenza (Bird Flu)
Avian influenza, or �bird flu�, is a contagious disease of animals caused by viruses that normally infect only birds and, less commonly, pigs. Avian influenza viruses are highly species-specific, but have, on rare occasions, crossed the species barrier to infect humans.
In domestic poultry, infection with avian influenza viruses causes two main forms of disease. The so-called �low pathogenic� form commonly causes only mild symptoms (ruffled feathers, a drop in egg production) and may easily go undetected. The highly pathogenic form is far more dramatic. It spreads very rapidly through poultry flocks, causes disease affecting multiple internal organs, and has a mortality that can approach 100%, often within 48 hours.
Influenza A viruses have 16 H subtypes and 9 N subtypes. Only viruses of the H5 and H7 subtypes are known to cause the highly pathogenic form of the disease. On present understanding, H5 and H7 viruses may circulate and infect poultry flocks in their low pathogenic form. The viruses can then mutate, usually within a few months, into the highly pathogenic form. This is why the presence of an H5 or H7 virus in poultry is always cause for concern, even when the initial signs of infection are mild. Read more »
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