Now it's June.
This whole chapter is Rostov trying to find Denisov in the army hospital. It's rank. "The hospital stench in this dark corridor was so strong that Rostov held his hand to his nose and had to stop and gather his strength to go further."
Everyone has typhus, and Rostov is warned that to go in could be death for him. He goes in anyway and sees men lying all around. There is a man seizing in the middle of the room, asking for water, and Nikolai orders someone to get it for him. Then he feels someone looking at him, something behind him - an old soldier. He gets closer, and realizes that the soldier is dead.
"Let's go, let's go!" Rostov said hastily, and, lowering his eyes and shrinking, he tried to pass unnoticed through the line of those reproachful and envious eyes directed at him as he left the room"
4 months ago