06.04.2021 | Tracker

HCPs dispel rumours as AstraZeneca attracts criticism in March

By Aaron Pitkin

Each month, CREATION.co’s COVID-19 vaccine tracker brings you the latest insights into the online healthcare professionals (HCPs) responding to the latest news and trial results for COVID-19 vaccine candidates.

Discover what healthcare professionals (HCPs) think about pharmaceutical products and their manufacturers, as it happens, through CREATION.co’s tracking updates. Each week CREATION.co’s tracking updates bring you the latest insights from the conversation of HCPs across the globe discussing Top 50 pharma, respiratory disease and more.

The Top 10 covid-19 vaccine candidates mentioned by HCPs on Twitter in March

March’s insights from HCPs mentioning covid-19 vaccine candidates on Twitter

March has seen a modest increase in the volume of COVID-vaccine related online chatter, largely owed to news surrounding the AstraZeneca and Pfizer vaccines.

Whilst AstraZeneca’s vaccine candidate has been under heavy scrutiny due to reports of blood clots that were circulated by mainstream news outlets. The HCP response to this news online has been measured, with many urging members of the public to still take the vaccine if offered, in addition to putting the number of thrombosis cases into perspective for those worried about the likelihood of thrombosis.


In March, HCPs online were concerned with dispelling misunderstandings and addressing the public’s concerns around vaccine candidates. This was done in several kinds of ways, from putting news stories of adverse reactions into perspective for those shaken by reports of side effects and death, to talking about some of the political factors that have distorted the flow of information.

In addition to these reactive comments, HCPs have also been proactively raising the public profile of various vaccines by celebrating recent successes and sharing new data. News of Pfizer’s success in younger patient populations was also widely shared last month. In addition to news concerning AstraZeneca and Pfizer, which were the most significant drivers of online HCP conversation in March, the other most retweeted posts were data releases for Johnson & Johnson and Novavax.

For those wishing to track how HCP online activity is contributing to the vaccine rollout effort, there has never been a better time to find extensive coverage of HCP opinion and influence reflected in online spaces. As more obstacles continue to emerge against vaccine administration, their voice will continue to be invaluable for those committed to protecting public health during the pandemic.

We will be tracking the online HCP conversation to identify trends and change in views relating to COVID-19 vaccines. You can stay up to date with HCP insights by subscribing to CREATION Knowledge e-journal.


  • Data for this research was analysed using CREATION Pinpoint® from the online Twitter conversations of HCPs around the world in English language (other languages are available), between March 1st – March 31st, 2021.
  • Vaccines tracked were the 84 COVID-19 vaccine candidates in clinical evaluation before 30 March 2021 (WHO Draft landscape of COVID-19 candidate vaccines).

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Meet the Author

Aaron Pitkin

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