Success Story: How a Mathematical Epidemiology Researcher Earned NIW Approval

Posted by wegreened on July 20, 2026 in NIW, Epidemiology

Client’s Testimonial:

"I am very pleased with the positive outcome. Thank you once again for your assistance and professionalism."

On May 13^th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for an Assistant Professor in the Field of Mathematical Epidemiology (Approval Notice).

General Field: Mathematical Epidemiology

Position at the Time of Case Filing: Assistant Professor

Country of Origin: Ghana

Country of Residence at the Time of Filing: Denmark

Approval Notice Date: May 13^th, 2026

Processing Time: 12 months, 11 days

Case Summary:

Infectious diseases kill millions each year, and the mathematical models we use to fight them matter. This EB-2 NIW approval belongs to an assistant professor in mathematical epidemiology who has made it a life's work to make those models better. With a Ph.D. in mathematical epidemiology and additional graduate degrees in computer and mathematical sciences and technomathematics, the client built a research program centered on advancing infectious disease modeling, assessing external risk factors, and strengthening public health mitigation strategies through statistical analyses and material characterization methods.

Establishing a Strong Scientific Record

The client's record included 20 peer-reviewed journal articles (11 of them first-authored), 4 peer-reviewed conference articles (2 of them first-authored), 2 first-authored abstracts, 3 preprints (1 of them first-authored), and 5 technical reports (1 of them first-authored), with 184 citations. The client had also completed at least 9 peer reviews for prestigious journals in the field, reflecting recognized expertise among peers. In an NIW case, these figures are most persuasive when they demonstrate actual reliance by the field, and the citation record here did exactly that.

Demonstrating National Importance Through Infectious Disease Modeling Research

In preparing the petition, North America Immigration Law Group (Chen Immigration Law Associates) emphasized that the client's work had significance well beyond academic publication. The research was framed as directly relevant to the United States' urgent need to address the growing burden of infectious diseases and antimicrobial resistance, challenges that affect tens of millions of Americans each year. The petition tied this work to broader national stakes in strengthening public health infrastructure and advancing epidemiological forecasting capabilities. We further highlighted how researchers worldwide had actively built upon the client's mathematical models, demonstrating that these contributions have become recognized tools in the discipline.

A Positive Outcome

This I-140 NIW approval shows how a focused proposed endeavor, grounded in an area of urgent national public health importance, supported by a strong publication record and rigorous citation context, can form a persuasive national interest case. We are proud that NAILG had the opportunity to assist this client in the field of mathematical epidemiology in presenting the case successfully.

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North America Immigration Law Group (Chen Immigration Law Associates) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

Our Sixty-four Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend

With nearly 64,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

We Have Helped Tens of Thousands of Clients with Credentials and Backgrounds Similar to Yours

With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

Vast Majority of Clients Came to Us Because of Referrals

For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our cumulative total of approved cases grew from 600 in 2013 to nearly 64,000 in 2025.

Track Record of Success EB-1 and NIW Approvals

(2012.01 - 2025.12)

Category	Approval or Refund^®		Approval or Refiling^TM
	Approval or Refund^®
Category	Approved Sum	Success Rate	Approved Sum	Success Rate
NIW	42,047	99%	5,258	97%
EB1A	9,218	91%	4,534	86%
EB1B	1,488	98%	448	93%
Total	52,753	98%	10,240	92%