“many states that send data to the agency can’t determine how many of their hospitalized Covid patients had been vaccinated, Politico has found, making it hard to assess how dangerous breakthrough infections can be”

Zeynep Tufekci:

Why this stumbling in the fog? It may seem like we’re drowning in data: Dashboards and charts are everywhere. However, not all data is equal in its power to illuminate, and worse, sometimes it can even be misleading.

Few things have been as lacking in clarity as the risks for children. Testing in schools is haphazard, follow-up reporting is poor and data on hospitalization of children appears to be unreliable, even if those cases are rare. The Food and Drug Administration has asked thatvaccine trials for children aged 5 to 11 be expanded, which is wise, but why weren’t they bigger to begin with?

While the pandemic has produced many fine examples of research and meticulous data collection, we are still lacking in detailed and systematic data on cases, contact-tracing, breakthrough infections and vaccine efficacy over time, as well as randomized trials of interventions like boosters. This has left us playing catch-up with emerging threats like the Delta variant and has left policymakers struggling to make timely decisions in a manner that inspires confidence.

To see the dangers of insufficient data and the powers of appropriate data, consider the case of dexamethasone, an inexpensive generic corticosteroid drug.

In the early days of the pandemic, doctors were warned against using it to treat Covid patients. The limited literature from SARS and MERS — illnesses related to Covid — suggested that steroids, which suppress the immune system, would harm rather than help Covid patients.