Okay thank you! I had tried a number of things and was unable to figure it out.

From my experience, untainted blood needs to be drawn directly from the source (the heart). You'll need to level up your Doctor skills, and then acquire a set of tools that will let you dissect a body, split the ribcage, and then draw fluids (blood) from the internal organs. The heart worked for me; not sure about other organs.

How do you obtain untainted blood?

Also how to hide chat or make it smaller its not problem with aspect ratio i can read everything good but this box is fixed to my left part of the screen and its almost 1/2 form it its soemthing i want to hide because i do not need it all the time :) and i want to use interact with Enter but chat is typed as enter but my key is set to T for chat :D everythign is mess with this chat :D

Thanks for replay and guide, because i used money before to buy house 4.700 for 3rd stage the bigest one and gui was black to transparent, when collect enought points to unlock all skills for the next profession, i had to suicide and select the new class(now i am same class or just own all of them with single character?) , then after update in september i think saw this new gui but with old design like hotbar in the bottom center of the game, inventory stats screen wit hequiped items, special ability button and they just changed menu with no transparent color in kind of yellow/brown and today after months from june/july starting game and cant understand anything its like new game also no text on map for example st. jonson monastery or other landmarks. Game fully changed and redesigned :D This guide helped me a lot.

Plague infection % is no longer shown; instead there is a Healthy/Sick general title that displays on the health bar at the bottom. When sick, the word "Healthy" will change to "Sick" or "Very Sick". Although underlying infection may still be a variable, it's no longer displayed as an exact percentage. However, there are stats to come by pressing i to access the inventory, but these are not yet implemented as of V0.23. As for the stamina/energy bar, this is now a green circle that appears around the cursor in the middle of the screen. See https://www.youtube.com/watch?v=KelerUcN56c for an example. I believe they made it a little more visible/darker in a later patch, too.

Where is Inventory charcter GUI where i was able to check stats and stuff like plague infection % and protection and more, also NO ENERGY BAR. While run or fight i just ran out of enery and can check it like before old white right bar. Also gui changed fuck this game its good but after pause period of 2-3 months now i am back and cant understand anything, i found only how to move, and learned all the stuff form this guide. Thanks mate :D

thanks mac

Apart from the suggestions mentioned in the Intro-FAQ, the only other thing that might fix chat would be to try several different aspect ratios. Some to try would be 1280x720 (16:9), 1280x768 (5:3), 1280x800 (8:5), or derivatives of those.

is there a wasy to fix the chat window mine is so small?