very true but we have vaccines and know how to treat polio, TB and aids.................this is different JMOO
We know how to treat ebola - that's why the people who came back here lived. We don't know how to cure ebola. But we don't know how to cure polio either. We treated it, but many people still suffered a lot of damage. Vaccines saved us, but do we vaccinate against polio anymore? I thought that was no longer done in the US. And vaccines only help beforehand, if you're expecting an outbreak.
TB I can't quite figure out - apparently it doesn't make most people that sick, but then ravages others. We can treat it, but I don't think we can do much for those hardest hit by it. From Wiki:
It is spread through the air when people who have an active TB infection cough, sneeze, or otherwise transmit respiratory fluids through the air. Most infections do not have symptoms, known as latent tuberculosis. About one in ten latent infections eventually progresses to active disease which, if left untreated, kills more than 50% of those so infected.
... Treatment is difficult and requires administration of multiple antibiotics over a long period of time. Social contacts are also screened and treated if necessary. Antibiotic resistance is a growing problem in multiple drug-resistant tuberculosis (MDR-TB) infections. ...
about 80% of the population in many Asian and African countries tests positive in tuberculin tests, while only 5–10% of the United States population tests positive. More people in the developing world contract tuberculosis because of a poor immune system, largely due to high rates of HIV infection and the corresponding development of AIDS.
So there's already TB here, but people are healthier so it doesn't destroy them like it once did. But it seems much easier to spread than ebola, and if it becomes antibiotic-resistant, it seems like a pretty big threat.
HIV was largely contained due to excellent public health campaigns - it's not very easy to transmit, and people began being a lot more careful about using protection and not sharing needles, etc. In places where birth control and sexual health is taboo, it's a disaster. And while we can treat HIV, I don't think we can treat AIDs very much. Once it hits that point, which we've now made a lot rarer, you are going to die, and probably suffer a lot more than someone with ebola.
Re: the malaria discussion - it is usually spread by mosquitoes. So if we had mosquitoes that could effectively transmit it, I'd say the danger would be pretty high. That can be harder to control that human-to-human transmission - think of how the plague was spread by fleas from rats.
I guess I feel that this is something we do have control over. Not that it couldn't kill people, but in the US it is reasonably possible to stay away from ebola victims and to make sure sewage isn't getting into water supplies and all that. The incubation period aspect makes it difficult, but many diseases have that component. The biggest issue is the victims die quickly - it just poses a much lower risk of spread than many other diseases, where people travel around for years with symptoms.
We also have much better body disposal methods in terms of sanitation - that makes a huge difference.
And while I realize ebola has killed thousands in this outbreak, so have a bunch of other diseases. Look at the statistics. Millions die from AIDS each year, and I'm sure many more do from malaria and TB than from ebola. Ebola has small short outbreaks that tragically take thousands of lives that should not be minimized, but it's death rates are nothing like those of many other diseases (in terms of numbers, not fatality rates), most of which are also spread by contact with other humans.