In this case, the 2018 article mentioned that some immigrants are/become doctors. Of course, the stuff they're talking about is conflating legal and illegal immigrants. They also don't share results to match the supposed purpose of the research (see bold and italicized text below).

McGovern and Spiegel were among 24 commissioners who worked on a two-year project to analyze whether migration spreads disease and to look into the effects that migrants have on health. The final study, published in the Lancet medical journal, finds that migration benefits economies. It also finds that people are using myths to fight migration.
The two-year study found that international migrants are less likely than people in their host countries to die of heart disease, cancer, respiratory diseases and other ills. The exceptions are hepatitis, tuberculosis and HIV. But the study also found these infections are generally only spread within the affected immigrant communities and not to the wider population.
Conditions in refugee camps and detention centers can lead to undervaccination and the spread of infectious disease, Spiegel noted. "It’s not migrants or migration itself that is spreading disease. It may be the situations that they are in and the lack of access to basic care that may exacerbate the situation," he said.