Word: either
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Dates: during 2000-2009
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...truth is that even though the virus is referred to as swine flu, researchers do not yet know for sure that the A/H1N1 virus actually originated in pigs. There's been no evidence yet of pigs getting sick in either Mexico or the U.S. (Despite several countries' bans on pork imports, it's important to remember that the disease cannot be contracted by eating pork.) The original reservoir for flu viruses is actually wild birds, which can spread infection to domestic birds and people - as we saw with the H5N1 avian flu in Asia - and to pigs. Pigs make particularly...
...only agency that possesses the virus needed to make a vaccine, says it is still "looking very intently" at a swine flu vaccine, but it has not yet given the green light to scale up production. In the event that it does, either in response to the current outbreak or down the road when the next pig-to-people flu causes massive illness, they may have better ways than they did in '76 to battle...
...fairly blame the pigs (indeed, the CDC has officially stopped calling the virus "swine flu," opting instead for the more hog-friendly 2009 H1N1 flu), can we blame Mexico? That charge doesn't stick either. Decades ago, numerous countries came together to develop the Global Influenza Surveillance Network (GISN), which allows epidemiological teams to spot new flu viruses as soon as they emerge and get vaccines ready in time. But the GISN only tracks human flu, meaning animal flu can slip by undetected. What's more, pigs that carry influenza tend not to die en masse the way flocks...
...Despite the fluidity of religious affiliation in the U.S., the Pew study discovered some commonalities among those who switch. Former Catholics who either switched to another tradition or became unaffiliated cited unhappiness with church teachings on abortion and homosexuality and disagreements over the role of women in the church. Protestants were more likely to switch because they married someone from another tradition. And if they eventually left religion altogether, they were most likely of all formerly religious adherents to have tried several different traditions before giving up - 38% of unaffiliated former Protestants had switched traditions twice, and 32% had switched...
...holding the regime back, Parsi says, is a fear of failure. If Tehran snubs Obama's olive branch, it will come under domestic and international pressure amid rising calls for more sanctions. But, Parsi says, the Iranians may worry that if they enter talks that then collapse, either because Obama was setting a trap or because he couldn't hold his part of the bargain, that would lead to greater international consensus for sanctions and even set the stage for something worse...