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Hace 5 horas · Bacillus Calmette–Guérin (BCG) vaccine is a vaccine primarily used against tuberculosis (TB). It is named after its inventors Albert Calmette and Camille Guérin. In countries where tuberculosis or leprosy is common, one dose is recommended in healthy babies as soon after birth as possible. In areas where tuberculosis is not common, only children at high risk are typically immunized, while ...
Hace 5 horas · Cyberbullying ( cyberharassment or online bullying) is a form of bullying or harassment using electronic means. It has become increasingly common, especially among teenagers and adolescents, due to young people's increased use of social media. [1] Related issues include online harassment and trolling.
