This is what is wrote in the keepers diary from Resident Evil Director's cut for PS1:

May 9, 1998

"At night, we played poker with Scott the guard, Alias and Steve the researcher. Steve was really lucky, but I think he was cheating. What a scumbag."

May 10, 1998

"Today, a high ranking researcher asked me to take care of a new monster. It looks like a gorilla without any skin. They told me to feed them live food. When I threw in a pig, they were playing with it... tearing off the pig's legs and pulling out the guts before they actually ate it."

May 11, 1998

"Around 5 o'clock this morning, Scott came in and woke me up suddenly. He was wearing a protection suit that looks like a space suit. He told me to put one on as well. I heard there was an accident in the basement lab. It's no wonder, those researchers never rest, even at night."

May 12, 1998

"I've been wearing this annoying space suit since yesterday, my skin grows musty and feels very itchy. By way of revenge, I didn't feed those dogs today. Now I feel better."

May 13, 1998

"I went to the medical room because my back is all swollen and feels itchy. They put a big bandage on my back and the doctor told me I did not need to wear the space suit any more. I guess I can sleep well tonight."

May 14, 1998

"When I woke up this morning, I found another blister on my foot. It was annoying and I ended up dragging my foot as I went to the dogs' pen. They have been quiet since morning, which is very unusual. I found that some of them had escaped. I'll be in real trouble if the higher-ups find out."

"As you may know, there are many plants that have medical effects. Since ancient times, humans have been healing wounds and diseases using various plants." "In this book, we're going to sample three herbs that grow around the Raccoon mountains and give their outlines as examples of those plants with medical properties. "Each herb has different colors and different effects as medical plants: the green one recovers physical strength, the blue one neutralizes natural toxins, while the red herb does not have any effect by itself. The red herb is only effective when it is mixed with other herbs." "For example, if you mix this herb with the herb that recovers physical strength, the recovery effect will be tripled. By adjusting the amount and experimenting with these three herbs, you can create various kinds of medicines but I'll leave the details in your hands, because that's the best way to acquire true knowledge."