Current therapies and options do not completely alleviate the acute pain, and fail to prevent PHN, and thus provides preventive measures such as vaccination may be warranted.
Here are some of the reasons why people fail to prevent ecological collapse.
On the one hand, they may be liable if they fail to prevent a suicide or murder.
Although disruptive, the bans are necessary because existing border controls and quarantines fail to prevent the spread of infectious diseases.
Existing frontline treatments help patients recover, but fail to prevent them passing the infection back to mosquitoes, meaning the spread of the disease continues unabated.
It found that once carbon dioxide levels rise to a high level, even sharp reductions fail to prevent longlasting impacts on snow and rainfall.
Critics argue that this was always a naive arrangement - not only did it fail to prevent bomb attacks, but it may have created a climate that stimulated them.
Boris Johnson's transport policies will fail to prevent huge increases in road traffic congestion across London in the coming years according to research by his own transport agency.
And why did the institutions of world diplomacy, notably the United Nations, fail to prevent a war that, on its own terms, was quite futile?
"So not only did the tax cut fail to prevent a recession, as its supporters said it would," Mr. Daschle said, "it probably made the recession worse".
The OECD has now publicly said global reforms are likely to fail to prevent large multinationals from avoiding tax in some of the poorest countries.
