In Mexico we know the secondary infection was killing we also know that at the beginning it was not know what was killing(introduction of new virus) Still today hospitals and families are reporting quick deaths after onset of symptoms. In spit of reports half of those dying are healthy and some are healthy and pregnant. (FluTrackers has some case by case as reported by media and Some personal family reports)
Deaths to date.
Mexico 163
USA 461
Argentina 386
Brazil 274
Chile 104
Australia 102

Many of the sequences have not been released for what ever reasons.

It is suspected low Vit D levels and Arsenic may play a role in some of the deaths.(Vit D is really a hormone,some countries have high arsenic in the water/ground water)
In some cases it is possible the virus is evolving.

PLUS.. h1n1 is way too overrated, so mannnnnny people die each year because of the regular influenza.

As of July 4th, 2009 the CDC and WHO have said there were 94,512 confirmed cases in 122 countries and among those there were 429 deaths associated with H1N1. They have not been keeping an accurate count since July 4th so any data since then is purely an estimate. Hospital cases world wide or (roughly 1/3 of those infected, representing cases that were in need of hospitalization) as of August 28th, 2009 is 287,537 infected, 3087 deaths or a 1.06% mortality rate if you need to be hospitalized.

If we do the math on overall confirmed cases(inside and outside of hospitals) 429 divided by 94512 we come up with the answer .45% or 9 people out of every 2000 have died from the virus. Of those 429 deaths only a handful were healthy individuals. 90% were the elderly, pregnant women, people with asthma, diabetes or suppressed immune systems and children under the age of 5. So if you are a healthy person that doesn't fall in any of these category's your risk of death is roughly .04% or 4 in 10000 chance, the same chance you'd have of dying from complications associated with any seasonal flu bug as a healthy person.

The same is true with the modern stat related to hospital visits, if we take into consideration how many have not gone to see a doctor, the estimated overall deaths to infection percentage is roughly 5000 deaths(about 2000 deaths thought to be related to H1N1 but not certain due to time of death and death outside of hospital) and 1,000,000 infected or .5% mortality rate.

I hope this comprehensive answer helps you complete your assignment and answers your questions about the virus. Check the website links under my sources if you wish for my information related to the virus.