Influenza or "flu" is a highly contagious virus which can infect people and some animals. The normal seasonal flu that spreads among people every year is a strain called H3N2. The germs that cause seasonal flu have been with us for many years. Consequently, our bodies have been exposed to them before in our daily lives and know how to fight the illness when we catch it.
Pandemic flu is different. A pandemic happens when a new strain of flu emerges and people have no immunity to the virus. People who catch pandemic flu can get very sick because their bodies do not know how to fight it off.
A leading candidate to cause the next pandemic is a strain of flu virus called H5N1 (a bird flu). This virus spreads easily among birds and has killed large numbers of them. The H5N1 virus is not highly contagious among humans yet, but it has infected over 300 people worldwide and killed more than half of those infected. While the virus originated in birds, it has been mutating rapidly. It now infects mammals, including people, more readily than it once did. At one point, a person had to inhale the virus deep into the lungs to become infected; now H5N1 has adapted to survive and multiply in the upper respiratory tract, although it is still hard for humans to catch.
What Makes a Pandemic? A pandemic is a worldwide disease outbreak. The average time elapsed between each of the last four flu pandemics was 25 years. The last pandemic, a mild one, was in 1968. For a flu virus to cause a pandemic, three things must happen. It must
The H5N1 virus meets the first two criteria. Many scientists and health officials are gravely concerned that it will mutate further so that it is able to spread as easily as the seasonal flu. If this happens, a pandemic will begin. Although there are other flu viruses that could cause a pandemic, H5N1 is currently the leading – and most worrisome – candidate.
How bad could it be? In a pandemic, it is expected that 20-50% of the world's people will become infected. We do not know how many people will die, but so far, over 60% of the people infected with H5N1 have died – compared to the 2% death rate for the last severe pandemic in 1918.Two percent of the US population today would equal 6,067,670 people dying of influenza – equivalent to all the people in Idaho, Nevada, Washington DC, Wyoming, and Montana dying. We hope that the fatality rate will decrease if/when a H5N1 pandemic begins, but the leading flu scientists have said that it doesn't have to.
During this time, we can expect significant disruption in our lives as people get sick, die, are taking care of loved ones, or are avoiding exposure to the virus. Grocery, heat, water, electricity, sewer, and health care will be severely affected.
Is there a cure? Some people assume that modern science has a cure for a pandemic virus. Unfortunately, that is not true. Although there are vaccines for "regular" flu, it is unlikely that there will be a vaccine for the first wave of a pandemic. Because flu viruses mutate, a pandemic has to start, before we can begin making a vaccine that will be certain to help. It takes 6 months to make a vaccine, so it will be at least six months after the pandemic starts before any vaccine is available. The first batches of vaccine will be given to critical personnel.
There are drugs called antivirals that may help people survive an H5N1 infection, but they must be given very quickly after symptoms start, or they don't work. There are not enough of these drugs for more than a fraction of the population. There are already signs that H5N1 may be evolving resistance to these drugs.
The previous section looked at potential infection and fatality outcomes of pandemic flu. We need now to understand the implications of this medical emergency in the context of our daily lives and to specify what it may mean for you, the reader. Our lives are supported by critical systems: healthcare, electricity, water supply, etc. These are the complex systems we take for granted - until they break. No one thinks of electricity until it goes out. These systems are run, manned and maintained by people. And people get pandemic flu.
Regardless of how many people get sick or die during a pandemic, the US federal government tells us to expect the following:
To start this process, you will need to have backups in all areas of your life. We recommend citizens store at least three months of basic supplies and low-tech options for household necessities.
On our homepage, we recommend each household have three months of food, water (or purification capability), medications, and other basic supplies on-hand. Let's look at why:
In terms of its scope, the impact of a severe pandemic may be more comparable to that of war or a widespread economic crisis than a hurricane, earthquake, or act of terrorism. In a localized emergency, such as a hurricane, help can come from other areas of the country. In a pandemic, everyone will be having the same shortages, and outside help will not be available.