Although they may not be the ones putting needles in arms, public health personnel continue to play a crucial role in the ongoing battle against COVID-19. Often, this means keeping track of virus-related data, as well as facilitating the flow of information to both internal and external audiences.

"Public health's role in combatting COVID is very similar to our role in anything else related to communicable disease, which is a large portion of what we do," said Air Force Public Health Career Field Manager Chief Master Sgt. Sheryl Green. "We do a lot of risk communication — working with commanders and making sure we're messaging appropriately to our communities and vice versa, making sure those communities have access to those commanders."

This means ensuring information gets to its intended receivers. It also includes forming partnerships and coordinating with local health departments to make sure that efforts on installations better reflect what is happening in nearby communities.

"Communication is huge, not just on base but also within our civilian communities and civilian agencies," said Green.

The information that is being disseminated needs to be easily understood and easily acted on.

"Through outcomes from products such as surveillance, data modeling, and business analytics, we've been able to inform and assist the operational community with planning, logistics, tracking, forecasting and medical intelligence," said United States Public Health Service Capt. Kimberly Elenberg, chief of the Defense Health Agency's Total Force Fitness Division. "Further, a key role for public health professionals has been the interpretation of complex data into easily understood, actionable information."

Additionally, DHA's Immunization Healthcare Division has played a key role in providing critical information to beneficiaries through publishing articles explaining the vaccines, participating in social media events, conducting stakeholder briefings, and leading question-and-answer sessions at local events.

Since the beginning of the pandemic, Green said much of the focus has been on stopping the spread.

"Breaking the chain of infection" is a term that is near and dear to us, and that's where contact tracing comes into play," said Green. "A large focus of the COVID response has been contact tracing and trying to figure out who has been exposed and what that picture looks like for each community."

Within the Air Force, she said, public health is closely involved in tracking the number of positive cases, as well as the number of vaccinations being administered by its clinicians.

"In regard to surveillance and testing, our responsibility is to maintain close communication with the laboratory community and making sure we have visibility of all positive tests," said Green.

Public health's function is mirrored throughout the services.

"Our staff have worked tirelessly to make sure policies were synthesized and updated based on the latest research and Centers for Disease Control and Prevention guidance, interpreted in the unique context of Naval operations, and shared with operational decision-makers," said Navy Capt. (Dr.) Jesse Geibe, executive officer of operations at Navy and Marine Corps Public Health Center in Portsmouth, Virginia. "Whether we are advising on masking, testing and surveillance strategies, the impact of vaccination, or myriad other COVID-19 issues, we keep the health of our sailors and Marines and completion of the mission first and foremost."

Green said that, while public health professionals have become much more flexible and agile over the past year, the traditional role of public health hasn't necessarily changed.

"The scope has obviously gotten much larger, which has caused them to have to rework how they approach disease tracking and tracing from an overall perspective, and they've done an amazing job doing that," said Green.