Concept where a werewolf is normally passed on through sexual interactions/intimacy rather than surviving an actual werewolf attack (because the chances of surviving a fully transformed werewolf mauling you is going to be extremely rare, (but being intimate with someone during the week around the full moon, when your senses and instincts are heightened and you have minor changes (more hair, teeth a little longer and sharper, nails a little thicker and sharper), any biting/nibbling and scratching has a higher chance of passing on the curse)
The thought was more roughly the 2-3ish days leading up to the 3 days of the full moon (changing each night), then the 2-3ish days after (a bit less likely due to exhaustion after the change but still possible) as they are coming down to normal human baseline (heightened instincts also have them more aggressive during this time too). Also, whilst rare, some people do occasionally actually survive an encounter with a fully transformed werewolf, either by getting somewhere the wolf can't fully reach, or if the wolf is driven off/killed before it can finish them off; if there are just a whole lot of victims/very populated area, it may only do glancing damage to some before it moves on. (Not sure, but I think the people who survived a full attack should be at least slightly stronger, or have some minor difference)
During the 3 Days of Full Moon, Intimacy is still possible; it just needs to happen during the day/before nightfall. Funny enough, the slightly higher baseline of those who survived/where infected through Mauling actually have a greater chance of passing it on during Intimacy
Actually transforming mid sex might be one of the few ways for someone to encounter a fully transformed werewolf without being mauled, after all if it comes to balls deep in someone or smells it's seed filling her it's less likely to attack it's 'mate', (other way (and even more likely way not to get mauled) would be to actually be pregnant with it's child(though neither of these is necessarily 100% going to save you there is still a risk of it just not caring a eating them anyway (more likely if it's a female werewolf fucking a human man, she might finish then decide to have a snack, or just decide she doesn't want sex) or the wolf may decide to continue weather their partner wants to or not (it's a beast consent isn't really a thing with animals))). Mauling Survivors ("The Scarred") only safe days would likely be the 3 days of the new moon (that's not to say intimacy any other day; they definitely will spread it, but just that it is a possibility)
It's primarily with bites and scratches acting as the transmission routes, but it is technically possible even without them; if the sex were rough enough to cause micro-abrasions to both parties from friction, it could be transmitted that way (though a werewolf's instincts and heightened aggression does drive them to bite and claw at their partners (particularly around the full moon))
Identifying werewolves in human form is possible as they have several tales but most are a bit subjective like they tend to have slightly thicker nails, their k9 teeth are a little bit more pronounced, they have a bit more body hair than average, they tend to be a bit more aggressive, (all this get more pronounced as it gets closer to the full moon) but those things are barely noticeable most times like you find a person with higher testosterone and they are hit all these marks, the one really damning trait is nipples werewolves will have 2-3 extra sets of veatigeal nipples going down their abdomen after their first full moon, this is a trait from their hybrid physicalige, it's barely noticeable on the males but when transformed female werewolves will develop 2-3 extra sets of breasts running down their abdomens the second set just below their first will be about half as large then the next half again etc..., their original breasts may also change depending (they may lose or gain a cup size or 2, like if they were DDs they may go down to a D or C cup, or if they were As they might get up to a B or C cup, (that only applies to natural sizes, fake ms will generally be expelled during the shift) and it's a bit random if they will go back to normal after the shift)
Whilst the extra nipples are mostly definitive (it is possible for people to naturally have a small mutation or moles that could give a false positive), it's kind of difficult to really use as a check (after all, going up to someone and saying 'hey, show me your chest' probably isn't going to work out well for you, particularly if you are doing it to a hyper-aggressive lycan having a bad day or week or month). Of course, fake breasts aren't the only thing that gets expelled during the change; it's a fun time for people who got a hip replacement before infection (sarcasm) or have titanium pins for broken bones, and pretty much everyone spits out a mouthful of fillings their first time, etc ...
After the first change, accelerated healing will deal with most issues, and if it doesn't, then the next full moon will (only thing it can't/doesn't fix is amputation; no regrowing hands or feet; it might repair a bone that is missing a section or replace organs, but it absolutely doesn't regrow missing bones; it can replace teeth, though)
There is also a dichotomy in the monthly resets mean that a werewolves tend to naturally live longer easily reaching 150-200 years old, but it can also prematurely age them so do to the stress of the transformation their hair will often go silver before they're 40, (somewhat depends on if they accept their condition or fight it (those who accept it tend to have easier shift, those that fight it they are fighting it, then their are the ones that embrace it (they tend not to live long as they are the type to go to the middle of a city on the night of a full moon or attack and eat people outside of the full moon))
I would say that the Embraced are the second largest incubator for creating the (Mauling Survivors) (most Embraced, do still have a slight modicum of survival instinct and will actually be more likely rampage in smaller communities townships, or villages, fewer people but higher kill count, and they can get away with it for longer, plus it not like they are super common) the ones responsible for the largest amount of Mauling Survivors are the unknowing werewolves or first timers, they are just living their lives and the moon rises doesn't matter where they are (at home, in a movie theater, on the subway, bar hopping, going for a run to try and burn off some energy) they shift and it gets bloody
Then guess what can happen with all those surviving victims in a month's time...
Though it's actually not that bad, as the ones that are mauled are mostly easy for the supernatural community to find and quietly inform/influence, or the trauma tends to make them self-isolate; it's the unknowing ones that got it from a 1-night stand or short fling that are a problem. Get one horny bastard that has a dozen+ lovers before their first full moon, and maybe 1 in 20 get infected...Granted, before their first change/full moon, they are at their lowest point of infectiousness