The film 'The Flu' does not feature any identifiable LGBTQ+ characters or themes. Its narrative is solely centered on a catastrophic viral epidemic and the efforts to contain it, without incorporating elements related to queer identity or experiences.

The film "The Flu" does not feature any identifiable transsexual characters or themes. Its narrative is solely centered on a catastrophic viral epidemic and the societal response to it, resulting in no portrayal of transgender identity.

The film focuses on a doctor and her daughter navigating a viral outbreak and quarantine. While the female lead, Kim In-hae, is a central character who faces immense challenges, her role does not involve direct physical combat where she defeats male opponents. Her actions are primarily focused on medical expertise, survival, and protecting her child.

The Flu (2013) is an original South Korean disaster film. All characters were created specifically for this movie, meaning there is no prior source material or historical basis from which a character's gender could have been swapped.

The Flu (2013) is an original South Korean film, not an adaptation of pre-existing source material with established characters. All characters were created for this specific movie, thus there is no prior canonical race to be altered.