EB-2 NIW Case Study: South African Medical Microbiologist Secures Approval in 3 Months and 13 Days, No RFE 

South Africa

Microbiologist

In early 2026, antimicrobial resistance remains a growing concern for U.S. public health agencies and hospital systems. Infections that once responded quickly to standard antibiotics are becoming harder to treat and continue to drive escalating public health and economic risks. For EB-2 National Interest Waiver (NIW) petitioners, this case illustrates how work that directly advances recognized U.S. public health priorities can meet the national importance standard under EB-2 NIW.  

Our client, a medical microbiologist from South Africa received EB-2 NIW petition approval by showing how her research on genetic resistance mechanisms can support novel therapeutics and stronger infection prevention through education and clinical collaboration. Her successful petition was prepared by Colombo & Hurd attorney Senior Attorney Rachel Slomski, who framed the case around the national public health implications of the work and a concrete plan for continuing it in the United States.  

EB-2 NIW Approval for a Microbiologist from South Africa
Client Profile

South African Microbiologist Built a Career Fighting Resistant Infections

Over more than a decade working in the field of medical microbiology, our client has worked in clinical and diagnostic settings where delayed or inaccurate detection of resistant infections carries immediate consequences for patient care. In a senior leadership role within a major diagnostic laboratory network, she supported numerous hospitals, guided complex clinical interpretations, and improved laboratory practices that directly affect the speed and accuracy of diagnosis. At the same time, she remained committed to teaching future healthcare professionals and contributing to professional development initiatives that expand diagnostic understanding across the field. 

Her research and publications further strengthened her position as a contributor to global infectious disease efforts. Through peer reviewed work, conference contributions, and editorial leadership in a diagnostics journal that reaches thousands of clinicians, she helped disseminateresearch and practical guidance used in clinical microbiology and infection prevention.=. 

 Her profile reflects the type of sustained, field-specific contribution USCIS evaluates when assessing national importance under the EB-2 NIW framework. 

The Challenge

Lab-Based Research was Essential to the Endeavor

For research-driven EB-2 NIW petitions, the strongest profiles can still face one recurring hurdle.  The question in cases like this is how to demonstrate a credible path forward in the United States when the work depends on laboratory infrastructure and collaboration, but no U.S. job offer is in place. 

Attorney Slomski summarized the issue succinctly: “The biggest challenge with a case like this is how do we define not only a specific endeavor based on her research, but how do we define how she’s going to carry out that research when we don’t have a job offer.” In this case, the petition had to demonstrate a practical strategy for advancing it through access to the facilities required to carry out high impact microbiology research in the United States. 

Strategic Response

Colombo & Hurd Positioned the Petition Around Research Continuity and Institutional Support

Our legal team addressed the challenge by documenting the strong demand for the client’s expertise across research, academic, and diagnostic settings, while clarifying that employer sponsorship was not aligned with how these roles are typically structured, rather than reflecting any lack of opportunity or merit. At the same time, the petition established a credible near-term plan for research continuity through institutional support and access to laboratory resources.  

As Attorney Slomski explained, “There are many settings in which she is qualified to carry out her research, but those roles are not structured to provide immigration sponsorship, which is why an EB-2 National Interest Waiver is appropriate.” By pairing evidence of professional demand with a detailed research plan supported by a letter of interest from a private research organization, the petition presented a practical model for advancing the work. It demonstrated that the client could continue her lab-based research and disseminate findings through established infrastructure, even prior to securing a long-term U.S. position. 

Result

Approved in 3 Months and 13 Days

The petition was approved in 3 months and 13 days with premium processing. The case progressed smoothly on the merits, and USCIS did not raise concerns about the national importance of the endeavor or the overall NIW framework under Matter of Dhanasar.   

Why This Case Succeeded

A National Public Health Priority Aligned with Federal Goals

The success of the case lies behind our client’s work which addressed antimicrobial resistance in difficult-to-treat infections, an urgent public health threat recognized by U.S. agencies. The case aligned her research and clinical leadership with federal priorities focused on strengthening surveillance, accelerating diagnostics, and supporting the development of new therapeutics. It also demonstrated practical impact through her role in clinical microbiology, research dissemination, and healthcare education, while credibly addressing the absence of a U.S. job offer by documenting realistic pathways for advancing the work through collaboration and institutional support 

What This Approval Enables

With EB-2 NIW approval in place, the client can now pursue her work through the pathways that best support high impact microbiology research. Her plan is to secure a role at an academic institution or a private medical laboratory focused on research and diagnostics, allowing her to conduct rigorous investigations while also sharing knowledge with healthcare professionals, students, and clinical teams.  

She also intends to work with diagnostic and pharmaceutical partners to validate testing tools and support therapeutic development, while pursuing institutional and external funding to sustain this work. Together, these efforts allow her contributions to continue strengthening diagnostic practices, treatment decisions, and infection prevention outcomes in the United States. 

Case Overview
Category  Details 
Visa Classification  EB-2 National Interest Waiver (NIW) 
Nationality  South Africa 
Professional Field  Medical Microbiology and Infectious Diseases 
Education  Doctor of Medicine (equivalent to U.S. M.D.); Master of Medicine (Pathology) in Medical Microbiology; Postgraduate degrees in Tropical Medicine and Hygiene, and Occupational Medicine and Hygiene 
Request for Evidence (RFE)  No 
Final Outcome  Approved 
Timeline  3 Months and 13 Days 
Lead Attorneys  Rachel Slomski 
Attorney Perspective

Rachel Slomski

Senior Attorney

“This case is a strong example of what the EB-2 National Interest Waiver is truly designed for. The NIW is not limited to professionals who already have a U.S. job offer in hand. It is for individuals whose work addresses a problem the United States has already identified as critical, and who can demonstrate a realistic plan to advance that work”

Related Resources

EB-2 NIW Visa: Complete Guide For 2026   

EB-2 NIW Processing Time (2026): Realistic Timeline & How To Avoid Delays 

This case was handled by Senior Attorney Rachel Slomski of Colombo & Hurd, a U.S. immigration law firm focused on extraordinary ability and national interest cases. The firm has secured over 10,000 successful visa and green card approvals for clients from more than 100 countries, including 2,500+ EB-2 NIW and EB-1A approvals since 2023.