Before revision:  This is especially true given the increasing role of online social media as information source, which might yield to social pressures eventually harmful for vaccine uptake, and is worsened by the lack of institutional presence on Twitter . This calls for efforts to contrast misinformation and the ensuing spread of hesitancy.
After revision:  This is especially true given the increasing role of online social media as information source, which might yield to social pressures eventually harmful for vaccine uptake, and is worsened by the lack of institutional presence on Twitter , calling for efforts to contrast misinformation and the ensuing spread of hesitancy.