Light Snow Fog/Mist and 30 F at Pittsburgh - Allegheny County Airport, PA
Winds are from the Northeast at 9.2 gusting to 17.3 MPH (8 gusting to 15 KT). The pressure is 1007.2 mb and the humidity is 88%.The wind chill is 22. Last Updated on Mar 20 2018, 6:53 pm EDT. More...
US Approves Antiretroviral Drug AZT as a Treatment for AIDS (1987) Though it was originally developed as an anticancer drug in 1964, azidothymidine (AZT) was never approved for that purpose. Two decades later, however, it was discovered to be effective in fighting HIV. At the time, thousands of people were dying of AIDS, and no other treatment was forthcoming. For humanitarian reasons, the drug was approved by the US Food and Drug Administration in a matter of months, rather than the usual eight to 10 years. How does the drug prevent HIV from reproducing? Discuss More...
'Smilies' are small graphical images that can be used to convey an emotion or feeling.
If you have used email or internet chat, you are likely familiar with the smilie concept.
Certain standard strings are automatically converted into smilies.
Try twisting your head on one side if you do not 'get' smilies;
using a bit of imagination should reveal a face of some description.
If you want to disable smilies in a post that you make, you can select the 'Disable Smilies' option
when posting. This is particularly useful if you are posting program code and you do not
want ;) converted to a smilie face!