I guess a lot of women are brutalized, but it's never in a sexualized way. They do appear in numerous states of distress and undress, too, but everything is just focused on the overwhelming fear and panic.
The building is quarantined by outside authorities and the trapped occupants - including the police officer inside the building with them - are not given information on why (concerns regarding potentially contagious zombification) in a timely manner.
Cats are mentioned as living with a resident in the building once. We never see the cats or even any evidence they actually live in the apartment where they're said to live.
Zombies of both sexes get full-on punched in the face, hit with objects, etc. No living, un-zombified woman is struck in any way by a living, un-zombified person.
There is a person in a full-face respirator that covers everything, including the mouth.
Also, in a tense situation near the end of the movie a character covers her own mouth to keep from making noise.
Maybe spoiler below?
It happens after the switch to night vision.
There are heavy bites and big wounds in all movie. The first attack seems like a bite to the neck and a big chunk of flesh is bitten off, it's not clear if it's the neck, the throat, or the jaw.
Physically no, but the entire thing is so traumatizing for all the characters that it could be well like being subjected to torture. Definitely big traumas
The thing the other commenter is talking about is clearly a fully developed woman when pictured, although she is severely starved. Also, the scene in question is so un-sexual that you can safely skip the spoiler in that comment and enjoy the movie if this is your trigger.
A person is compromised and tells others to run while restraining the threat. It happens very quickly in the middle of an action scene and with little fanfare.
Second is not really an intentional sacrifice per se. Later in the film, a person stays behind in a hallway to protect other characters while they enter a place for a purpose. When that purpose is over it is shown that the hallway character has also been compromised.
For a zombie movie, though, it's pretty light on the fully eating people. Zombies mostly get a mouthful or two and then move on to attack someone else. They're more rage zombies than Romero zombies.
Faceless law enforcement outside the quarantine acts pretty stereotypically (and not in a positive way), but the police officers who are actual characters are as well-rounded and developed as characters in a zombie movie can be.
Brief scene where cameraman is recording through a cracked open high window into a room civilians have been locked out of. Also a few brief moments where zombies see humans that don't see them and vice versa.
The film itself doesn't misrepresent them. A racist guy says that the Asian family who doesn't speak much Spanish is the cause of the outbreak because they leave their door open and eat with raw fish. He also calls them Chinese (and "not the nice kind that does Feng Shui") when I think they might actually be Japanese.