aids
...In contrast, SARS--Severe Acute Respiratory Syndrome--is basically a new strain of flu or pneumonia--first appeared in China in November 2002. It became the first newly emerged, serious and contagious illness of the 21st century. The emergence of SARS illustrates just how quickly infection can proliferate in a highly mobile and interconnected world. In the first part, I have talk about the fierce of AIDS and SARS. Now, IĄŻll move on to the second part. Secondly, I would like to talk about the how they spread. Two ways can transmit SARS: droplets and airborne particles. In droplet transmission, the infected particles are large and can travel only about three feet. To inhale them, you literally must be face to face with someone who's sick. Because airborne particles are much smaller than droplets, they travel farther and linger longer in the air. As a result, you can become infected even after the person who coughed or sneezed has left the room. Unlike SARS, The following "bodily fluids" are NOT infectious: saliva, tears, sweats, feces and urine. Only three ways can spread HIV: unprotected sexual contact, direct blood contact, including injection drug needles, blood transfusions, accidents in health care settings or certain blood products and mother to baby. Finally, I want to ta...