Remedy

Take the serum back to Connant to get yourself vaccinated from the Brann Plague.


 * Speak With Connant
 * Connant can be found in the medical center in Baylor Base.


 * Let a Caretaker Kill You
 * Caretakers only. Take out anything else.

Briefing
Dr. Torpor:
 * I've got it synthesized. You'll just need to take it back to Baylor Base and give it to Connant. He'll be able to inject you with the vaccine.

Speak With Connant
Connant:
 * I'm going to inject you with the vaccine. You're going to have to test it though. This may sound odd, but I'm going to need you to actually get yourself killed by a caretaker since they're using the virus, and make sure that the vaccine protects you.

Debriefing
Connant:
 * This should do the trick. You're going to have Brann DNA coursing through your blood stream. I hope it treats you as well as it's treated me. We'll get to work immunizing everyone else.

Speak with Connant and you will discover that you need to get killed by a Caretaker. Fortunately for any higher-level players, this is not limited to Mires. If need be, head to Descent or whatever other zone is suited to your level.

Once you've found a Caretaker*, quickly kill any other enemies in the area and try to lead the Caretaker away from their bodies or somehow manage to overkill all of them (since overkilled enemies can't be rezzed). Otherwise, the Caretaker may spend all day trying to revive its fallen companions. Once you've got its undivided attention, strip off your armor. Because the Caretaker does virulent damage, this will not only remove all armor HP, but the Caretaker will also inflict greater damage. (It will also save you some credits on repairs.) Stripping off your armour will almost certainly be necessary for those who wear Graviton Armour due to it's regeneration rate when at high levels.

(*If you're still in Mires the Brann LZ has several Caretakers in it's spawning groups - the most reliable spawns near the group of run-down buildings in the eastern half of the LZ. Others can be found scattered around the LZ however, most often in the north east or on the main northward path. )

If you can, feel free to use self-damaging abilities. Just make sure you don't kill yourself, and that no other enemies 'steal' the kill from the Caretaker.

Don't try and get yourself killed by a caretaker-type mini-boss like Vilescorn, the kill won't register. Apparently only regular-type caretakers count.

Once done, you can return to Connant to complete the mission and unlock Brann Hybrids.