Scientific Pathways

A research career is, in large part, a sequence of fellowships and grants, often working as an entrepeneur to convince funders that the work you do matters and that you are the right person to do it. If successful, you will be given the money to buy your time and materials to do the science and answer the questions and ask the next question. Being able to get funding to pursue your questions is a major part of being an independent investigator (meaning that you are funded to pursue your research questions). This page maps the major funding mechanisms in the United States and beyond, from graduate fellowships to a first independent research grant, and lays out the basics of writing a competitive application. It is a companion to scientific writing, which covers the craft of the proposal itself.

A funding ladder across the research career: NSF and NIH predoctoral fellowships during the PhD, postdoctoral and transition awards, and independent research grants for early faculty.
Figure 1. A funding ladder across the research career: NSF and NIH predoctoral fellowships during the PhD, postdoctoral and transition awards, and independent research grants for early faculty.

The shape of a research career#

Funding mechanisms are tied to different career stage, and knowing where you sit tells you which doors are open. Note that these are the paradigmatic approaches - you can enter the path from a variety of backgrounds, but this is the most traditional approach.

The ladder is not the only path — many rewarding careers run through industry (i.e., working for a pharmaceutical company or in commercial agriculture), government (e.g., CDC, FDA, USDA, DOD), non-profits, science policy, and teaching-focused institutions — but the mechanisms below are the scaffolding of the academic research track.

NIH: the National Institutes of Health#

The NIH funds biomedical research through institutes (NIAID for infectious disease, NIGMS for basic science, and others), each with its own priorities, and its awards are named by an alphanumeric activity code.

Fellowships and training (the “F” series, NRSA).

Career-development / transition (“K” series).

Independent research (“R” series).

How NIH review works. Applications are evaluated by a study section — a panel of peer scientists — against scored criteria (significance, investigators, innovation, approach, environment, and the overarching factors of rigor and reproducibility). Reviewers give an impact score; competitive applications are discussed and percentiled, and each institute funds down to a payline (a percentile cutoff set by its budget). Most funded grants were resubmissions — a strong revision responding point-by-point to the summary statement is the norm, not a failure.

NSF: the National Science Foundation#

NSF funds fundamental science and education, including the ecological and evolutionary side of infectious-disease research (e.g. through programs on the ecology and evolution of infectious diseases).

Beyond federal agencies: foundations and international funders#

Non-governmental funders are a major, and sometimes more flexible, source of support — often prizing bold, investigator-driven ideas and diversifying a funding portfolio.

US foundations and private funders.

International and cross-border funders.

Grant-writing basics#

Whatever the funder, competitive proposals share a structure and a discipline.

Why it matters#

Learning to navigate this landscape — which mechanism fits your stage, how a study section thinks, how a foundation differs from a federal agency — is a core professional skill, as real as any laboratory or statistical technique. Funding is what converts a good question into the time, people, and equipment to answer it, and a scientist who understands the pathways can build a career around the science they most want to do.