Scientists have been closely watching the virus since it first appeared in Hong Kong in 1997.
Currently the virus with the most variants is called Agobot and there are more than 170 versions of that created since it first appeared in October 2002.
Known commonly as the ski-doo, it first appeared on the Finnish market in 1962 and the Sami people used them to revolutionise reindeer herding.
When Ms Graham was first summoned to court in June it was thought to be the first time a serving chief constable in Scotland had appeared in court as an accused.
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The rector of Notre-Dame, Monsignor Patrick Jacquin, said it appeared to be the first suicide in decades at the cathedral.
Although historians and archeologists call them icons, artifacts, and talismans, it may be that the first cat memes appeared in ancient Egypt.
It is the largest outbreak since the virus first appeared in the US in 1999.
The programme attracted no attention when first screened, in part because it appeared on an obscure cable channel.
Trifling as it sounds, the game, created by a Los Angeles shop called YaYa , attracted 40, 000 players in the first week it appeared on Chrysler 's Web site.
It Runs in the Family is the first time the three generations of the Douglas clan have appeared in the same movie.
Bitcoins, and the global network of computers that supports them, first appeared in 2009 and since then it has become a very widely used alternative payments system.
Ever since the company first opened its doors in Miami, it has appeared organically to the youthful minded of America seeking incredibly beautiful skin via a special waxing approach developed exclusively for EWC in France.
When the first Harry Potter book appeared, in 1997, it was just a year before the universal search engine Google was launched.
This is hardly the first time we've seen Switchblade -- it's appeared in various Razer keyboards, the original Razer Blade and even a prototype that never saw the light of day.
It is not the first time Bieber has appeared late on stage - he kept fans in Nottingham waiting for an hour on Saturday, eventually beginning his show at 22:00 and ending at 23:40.
It's the first time in tens of millions of years that these predators have appeared that close to Antarctica.
Murray took the first set in the final against Federer, and for a moment, it appeared history was on the verge.
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As soon as the first daily maps appeared in the Times in 1875, some people, it seems, could not get enough of them.
Two days after it was announced, Mr Menem appeared at a rally with Mr Duhalde, for the first time in months.
Markstrom lost a shot at his first NHL shutout in the closing minutes, but it wasn't nearly the bummer it appeared to be.
It wouldn't be the first time Cook helped with an Apple presentation -- he appeared onstage in January when the company unveiled an iPhone on Verizon's network -- but it would be his first time as headliner.
Last month it appeared the political scales were once again tipping in Sanford's favor after he came in first in a 16-candidate primary.
The first "Dear Abby" column appeared in the San Francisco Chronicle on Jan. 9, 1956, the same year it was first syndicated.
It was the first such public claim by Israel and appeared to increase pressure on Washington and other Western countries to intervene in Syria.
The match started on an all-time pace Murray took the first set in a tiebreak, and Djokovic did the same to win the second set, and it appeared we were on pace for five hours and another gooey rhapsody of praise.
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