Weltel Digitally Supported Patient Care.

For more information contact

Dr. Richard Lester &
Dr. Gabrielle Serafini      


Almost all health care is voluntary: patients choose when to engage in care, when to take their medicine (if they choose to take it), and whether to return for follow-up visits. In human immunodeficiency virus (HIV) infection and other chronic… Read More

We are entering a new phase in the strategic use of antiretroviral drugs. In addition to dramatically reducing HIV/AIDS-related morbidity and mortality, these drugs have recently shown an important effect in reducing HIV incidence and transmission. […]

Developing Solutions

July 15, 2010

There is more to combating HIV in the developing world than providing affordable drugs. T.V. Padma looks at the innovative new strategies being employed. […]


Grand Challenges Canada Phase II

Project Completed

To implement a text-messaging service (WelTel) for HIV medication adherence in addition to other healthcare conditions at clinical sites in the Northern Arid Lands of Kenya. 2000 patients enrolled in the original pilot are still receiving SMS support.

WelTel Retain

Project Completed

To determine whether the WelTel intervention can improve retention in care among HIV-infected individuals who are not yet taking antiretroviral medication.

WelTel Oak Tree

Project Completed

HIV/AIDS in British Columbia. The goal of this study is to assess clinical outcomes (e.g. CD4 counts, HIV viral loads, clinic appointment attendance, HIV medication adherence) in a group of 100 high-risk individuals, using the WelTel text messaging intervention.

LTBI mHealth Study

Project Completed

A Randomized Controlled Trial to Examine the Effectiveness of the Use of Mobile Phones and Text Messaging to Improve Adherence to Treatment of Latent Tuberculosis Infection

WelTel Kenya1

Project Completed

A multisite randomized controlled trial of HIV-positive adults initiating antiretroviral therapy in Kenya. This trial assessed whether mobile phone communication between health-care workers and patients improved drug adherence and viral load suppression.

Grand Challenges Canada Phase I

Project Completed

To implement the text-messaging service (WelTel) at a demonstration site in Kenya and develop a sustainable business model that can be used to scale up the intervention in resource-limited settings.

News & Media Coverage

Kenya’s Startup Boom

Local programmers and homegrown business models are helping to realize the vast promise of using phones to improve health care and save lives.

Phones like Hussein’s hold great potential to improve the way health services are delivered. One major study demonstrating as much was started five years ago by Richard Lester, a Canadian infectious-disease specialist. After arriving in Kenya for a research fellowship,… Read More


The convergence of mobile telephony and health care is under way

BILL GATES seems to relish being the skunk at the garden party. The former boss of Microsoft, now a global-health philanthropist, was invited to address a big “m-health” conference in Washington, DC, this week. Some 2,400 proponents of delivering health… Read More

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