Intergalactic disease among humans

[Dangerious P. Cats]

I've been watching through Stargate Atlantis and something struck me about encountering humans separated by thousands of years on other planets with different eco systems is that you'd get different diseases evolving among different populations and likewise people in different populations not having any immunity to diseases brought by interplanetary visitors.

So how might the same species living on different planets apart for thousands of years affect the development of viruses and bacteria? And what kind interesting roleplaying scenarios could this lead to?

[gjc8]

Naturally, it's more time than distance, though thousands of years should be enough. With that time span, though, anything deadly to one group should at least be noticeable to the other. Smallpox isn't exactly a fun disease for Europeans, either.

Race to find the cure is a classic scenario. Add in diplomatic complications if the natives notice that the plague got started just when you showed up.

If the primary contact team, or a key specialist, gets sick, you've got either got a less experienced substitute standing in. Or, they're not really that sick, but they have to be kept out of contact with the natives, so you're trying to run diplomacy by radio or inside an germ-proof suit.

You have a sexually transmitted disease cross over. In addition to the public health issues, you now have to determine who's "going native".

[zylosan]

In even a mildly realistic campagin, the SG teams would have long sense brought home something nasty that the earth has no resistance against.

A big factor in the development of disease is the presence and varity of domestic and wild animals. Some of our nastest disease come from the animals we keep. New planet, new eco system = lots of opp for death

[David Johnston2]

Originally Posted by zylosan

In even a mildly realistic campagin, the SG teams would have long sense brought home something nasty that the earth has no resistance against.

Of course they'd also have quarantine procedures after every mission.

[RyanW]

Originally Posted by zylosan

A big factor in the development of disease is the presence and varity of domestic and wild animals. Some of our nastest disease come from the animals we keep. New planet, new eco system = lots of opp for death

It's very likely that a new ecosystem would not present many dangerous contagions. The classic line is that Spock's mom would have had a better chance of conceiving with a horseshoe crab, and the same likely goes for alien viruses. A transplanted ecosystem would be a much bigger hazard.

Bacteria-like infections might be a different issue, as they may function very well on water and sugars, rather than DNA. Likewise toxic chemicals.

Edit: Of course, such an ecosystem is unlikely to support a human population, as well. If the aliens don't use very similar amino acid structures as humans, they aren't food.

[vierasmarius]

Originally Posted by RyanW

It's very likely that a new ecosystem would not present many dangerous contagions. The classic line is that Spock's mom would have had a better chance of conceiving with a horseshoe crab, and the same likely goes for alien viruses. A transplanted ecosystem would be a much bigger hazard.

Bacteria-like infections might be a different issue, as they may function very well on water and sugars, rather than DNA. Likewise toxic chemicals.

Edit: Of course, such an ecosystem is unlikely to support a human population, as well. If the aliens don't use very similar amino acid structures as humans, they aren't food.

The OP was referencing the Stargate universe, and asking about Human populations that settle on other planets, then go thousands of years before contact with the rest of the species. You're right about completely alien organisms / ecosystems, though.

[Anthony]

Originally Posted by vierasmarius

The OP was referencing the Stargate universe, and asking about Human populations that settle on other planets, then go thousands of years before contact with the rest of the species. You're right about completely alien organisms / ecosystems, though.

Actually, if it's humans in an alien ecosystem, they'll still have changes in disease development, due to the lack of viable animal reservoirs.

[teviet]

Originally Posted by RyanW

Edit: Of course, such an ecosystem is unlikely to support a human population, as well. If the aliens don't use very similar amino acid structures as humans, they aren't food.

I'd always assumed that the Ancients terraformed most of the planets where we find human populations (even if the humans themselves were shipped in hundreds of thousands of years later). Otherwise the chances of finding a compatible ecosystem would be negligible.

TeV

[ULFGARD]

Originally Posted by zylosan

In even a mildly realistic campagin, the SG teams would have long sense brought home something nasty that the earth has no resistance against.

A big factor in the development of disease is the presence and varity of domestic and wild animals. Some of our nastest disease come from the animals we keep. New planet, new eco system = lots of opp for death

Of course, in a mildly realistic campaign, they would have had to find translators for pretty much everyone they encountered. Common disease was left out (like language) because it wasn't that much fun for a series. It probably wouldn't be fun in a roleplaying setting either, at least one with the same "adventure mode" feel of SG-1 or Atlantis.

[Kale]

Originally Posted by ULFGARD

Of course, in a mildly realistic campaign, they would have had to find translators for pretty much everyone they encountered. Common disease was left out (like language) because it wasn't that much fun for a series. It probably wouldn't be fun in a roleplaying setting either, at least one with the same "adventure mode" feel of SG-1 or Atlantis.

Yeah, having the SG teams spending weeks in quarantine after every trip wouldn't have made for an exciting show.