If there is someone infected on your party, you need to complete this quest to save them. Kathy Lawson is researching into the cure at the main complex. First, you need to collect 10 Pods specimens for her, which should not be too difficult, considering that there are many of them at the Center. Remember that Pods burst if approached so, it is best to fire at it from afar.
The second step is to go to the mushroom cave for the Fungicide. Go down to the basement and use the computer to open the Southern air lock. In the mushroom caves, there are lots of Pods so, be especially careful while fighting them. Also, there are lots of Pod People and insects here - you can try and use the Pods against them. Fungicide is in the rooms past the caves. You first need to talk to Skinner, who has barricaded himself, and have him open the door (you simply need to tell him that you are with the Rangers). Take the poison to Kathy (she is where Rose used to be, at first), she will develop the cure and heal Matt Forrestal (talk to him afterwards and he will tell you the combination for his safe, as a reward).
Once you disable irrigation (the pumps in the Eastern and Western fields), you will receive vials of the antidote from Kathy and she will ask you to pour them into the tank at the main complex. With the antidote you can also heal your party members, if infected. After you pour the serum in the tank, all in the complex will be cured. Pouring the serum into the reservoir also heals all the infected, around the complex. Return to Kathy for your reward. Also, talk to Matt and he will give you a key and a combination for the safe in his office (80085).
- Do not help develop the cure - Matt Forrestal turns then into a Pod Person, Rose leaves the team and the Ag center will be destroyed;
- keep the cure for yourself and do not pour it into the tank - Kathy will be disappointed in selfishness of the Rangers. The infected at the Ag Center die. Apart from healing the infection, the cure also provides you with +5 CON for 30 minutes.
Concerns the quests:
- Help Kathy Lawson develop the cure;
- Pour the serum from the Ag center in the retention tank.