During this process of transformation - or genetic drift - the virus alters its appearance and the immune memory cells struggle to recognise it.
He was lucky to win that match at all, and he almost lost, letting a 5-0 lead drift to 5-4 before he nailed it, on the third throw, with a double 10.
ECONOMIST: Jocky Wilson, darts player, died on March 24th, aged 62
It is a small drift mine - a mine cut into the side of a hill, where the coal seam is accessed by walking in.
Two more men escaped unaided from the drift mine - a mine cut into the side of a hill where the coal seam is accessed horizontally - before emergency services arrived.
It will also be a chance for the parties to shake off some of the challenges that are holding them down, such as the right-wing drift of the GOP -- which could hurt the chances of the Republican candidates in 2016, regardless of how charismatic and talented they are.
But the NUS is concerned there is a long-term drift towards placing entry charges on students - following the precedent set by tuition fees - and has supported an early-day motion in the House of Commons declaring opposition to top-up fees, signed by 38 MPs.
So Estrada addressed just about every issue - from Concord to policy drift to corruption to crime - that had been eroding his popularity and his administration's effectiveness.
But the Obama administration's patience -- or just policy drift, we may never know -- paid off.
Derek Lyle then saw a curling effort drift past Ma-Kalambay's right-hand post before James McArthur's shot was deflected wide.
Our drift toward ever-smaller gadgets is now taking a turn toward the embiggened.
It is also difficult to maintain consistent outputs from the different LEDs so light from the devices tends to drift into off-white hues.
Regarding the nuclear plants, Spiegel Online is showing a simulation of radioactive drift of I-131 (radioiodine) from the Viennese Central Institute for Meteorology and Geodynamics (ZAMG).
Ford's outfitted the Fusion Energi with a dizzying array of driver-assist tech, including a lane-keeping system, adaptive cruise control, driver alert system, active park assist, rear camera, blind-spot indicator system with cross-traffic alert and pull-drift compensation (phew).
ENGADGET: Ford Fusion Energi plug-in hybrid test drive (video)
"Don't Stop Believing" by Journey is the PA announcer's usual choice of song as fans drift home post-match and Ulster fans are surely starting to believe again, daring to dream that the heady days of 1999 may be, just may be, about to return.
Among the famous actions highlighted is the story of the nine men of the 24th Regiment of Foot, who won the Victoria Cross for their defence of the supply depot at Rorke's Drift in 1879 - the greatest number of VCs ever awarded for a single battle.
He suffered similar embarrassment during the 2002 World Cup when he allowed a Ronaldinho free-kick to drift over him as England slipped out of the finals after losing 2-1 to Brazil.
Saints' Jim Hamilton then saw his headed attempt from Franco Miranda's free-kick drift wide.
The cars can be coaxed into a controllable four-wheel drift, pitching around as they corner.
WSJ: 2013 Ford Focus ST Review: Why Should Europe Have All the Fun? | Rumble Seat by Dan Neil
But whatever happens at that election, these liberals are wrong about the longer-term drift of American politics.
And each year, 10% of school-leavers drift away without any qualifications at all.
Style drift is the second-most important reason to sell your mutual fund.
FORBES: When To Sell Your Mutual Fund And Fire Your Money Manager
Again a change resulted in immediate success, Mohammad Rafique's first ball trapping Dravid, the captain infuriated with the decision as the ball appeared to drift down the leg-side.
Labour seats have, on average, 6, 000 fewer electors than Tory ones because of the long-term drift of population from the cities to the shire counties and the leafy suburbs.
It may push America into realising that the system has become an absurdity, the result of inertia, drift and bureaucratic empire-building rather than a cool assessment of the government's current needs.
One risk is that the mining operations could generate huge plumes of sediment that could drift through the sea - choking any marine life that feeds by ingesting water and filtering out its food sources.
BBC: UK Seabed Resources joins deep-ocean mineral-mining rush
In the 30 days after an event, researchers some what they described as post-event drift that averaged about 50 basis points for positive news while negative news generated little drift in the days after a report.
There has been a century-long drift in the direction of the higher and higher percentage of people who don't have everything that they need in order to live and I think that that percentage will grow.
At maximum this allows you to go from lock to lock ridiculously quickly (and imprecisely), but just a few points of drift helped to counter-act the game's programmed resistance and gave the feel of a very over-boosted power steering setup.
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