Valerie Mizrahi elected as international honorary member of the American Academy of Arts and Sciences
Professor Emerita Valerie Mizrah honoured as international honorary member of prestigious academy
Image: UCT News
In a remarkable achievement for South Africa's scientific community, Emerita Professor Valerie Mizrahi from the University of Cape Town (UCT) has been elected as an international honorary member of the esteemed American Academy of Arts and Sciences.
Mizrahi, renowned for her groundbreaking research on tuberculosis (TB), was recognised in the biological sciences category, specifically within the immunology and microbiology subfield.
As the director of UCT's Molecular Mycobacteriology Research Unit and former head of the Institute for Infectious Disease and Molecular Medicine, Mizrahi's election highlights her outstanding contributions to biological sciences and her commitment to advancing public health, particularly in combatting infectious diseases. The announcement has been met with widespread admiration, positioning her among an elite group of scholars noted for excellence across diverse fields, including the arts, humanities, science, and technology.
The American Academy of Arts and Sciences, which was established in 1780, serves as a global platform for distinguished individuals to engage with and address pressing issues affecting society. It counts among its members renowned figures such as Nobel and Pulitzer Prize winners, public intellectuals, and influential artists.
Reflecting on her election, Professor Mizrahi expressed heartfelt appreciation: 'It is a special privilege to be elected to an academy that includes such esteemed scholars from UCT and other institutions in South Africa, as well as scholars from across the globe who have distinguished themselves in all fields of human endeavour. It holds very special significance, given the divisiveness, polarisation, and strife that characterise our world today.'
Her emotional response to the honour included surprise, joy, and deep gratitude. 'I am deeply honoured and profoundly grateful to accept the invitation of membership to this prestigious academy,' Mizrahi said, highlighting the invaluable support of her family, mentors, colleagues, and the nurturing environments of her affiliations—especially UCT, the University of the Witwatersrand, and the National Health Laboratory Service.
'And of course, the many brilliant young people who have worked in my group over the years, this honour rightly belongs to you,' Mizrahi added, proudly acknowledging the contributions of her mentees who are poised to shape the future of public health in Africa. 'Nurturing a new generation of scientists has been a source of immense pride and joy.'
Hashtags

Try Our AI Features
Explore what Daily8 AI can do for you:
Comments
No comments yet...
Related Articles

TimesLIVE
a day ago
- TimesLIVE
Critical TB research in South Africa at risk after US aid cuts
At a tense meeting in Nigeria's capital Abuja, health workers pored over drug registers and testing records to gauge whether US aid cuts would unravel years of painstaking work against tuberculosis in one of Africa's hardest-hit countries. For several days in May, they brainstormed ways to limit the fallout from a halt to US funding for the TB Local Network (TB LON), which delivers screening, diagnosis and treatment. 'To tackle the spread of TB, you must identify cases and that is in a coma because of the aid cuts,' said Ibrahim Umoru, co-ordinator of the African TB Coalition civil society network, who was at the Abuja meeting. 'This means more cases will be missed and disaster is looming.' This desperate struggle to save endangered programmes is being replicated from the Philippines to South Africa as experts warn that US aid cuts risk reviving a deadly infectious disease that kills about one million people every year. President Donald Trump's gutting of the US Agency for International Development (USAID) has put TB testing and tracing on hold in Pakistan and Nigeria, stalled vital research in South Africa and left TB survivors lacking support in India. The World Health Organization (WHO) says 'the drastic and abrupt cuts in global health funding' threaten to reverse the gains made by global efforts to fight the disease — namely 79-million lives saved since 2000 — with rising drug resistance and conflicts exacerbating the risks. In Nigeria, TB LON is in the firing line. The project was set up in 2020, during Trump's first term, and received $45m (R806m) worth of funding from USAID. The US development agency said at the time it was committed to a 'TB-free Nigeria'. Five years later and with the same president back in charge but now with a more radical 'America first' agenda, USAID support for TB LON's community testing work was terminated in February, according to a TB LON official who did not want to be named. 'HARD WORK IN JEOPARDY' TB kills 268 Nigerians every day and cases have historically been underreported, increasing the risk of transmission. If one case is missed, that person can transmit TB to 15 people over a year, according to the WHO. The Thomson Reuters Foundation spoke to health workers who collect TB test samples for TB LON but had stopped doing so in January due to the US aid freeze. Between 2020-2024, TB LON screened about 20-million people in southwestern states in Nigeria, and more than 100,000 patients were treated as a result. Every major TB treatment and vaccine advance in the past two decades has relied on research carried out in South Africa Lindsay McKenna, TAG TB project co-director 'All that hard work is in jeopardy if we don't act quickly,' Umoru said, adding that non-profits working with TB LON had laid off more than 1,000 contract workers who used to do TB screening. Nigeria's health ministry did not respond to request for comment on the effect of the USAID cuts on TB programmes. In March, First Lady Oluremi Tinubu declared TB a national emergency and donated 1-billion naira (R11.3m) to efforts to eradicate the disease by 2030. In South Africa, medical charity Médecins Sans Frontières (MSF) said TB and HIV programmes had been disrupted across the country, making patient tracking and testing more difficult, according to a statement sent to the Thomson Reuters Foundation. South Africa had a TB incidence rate of 427 per 100,000 people in 2023, government data showed, down 57% from 2015. TB-related deaths in South Africa dropped 16% over that period, the data showed. Minister of health Aaron Motsoaledi said in May that the government would launch an End TB campaign to screen and test 5-million people, and was also seeking new donor funding. 'Under no circumstances will we allow this massive work performed over a period of more than a decade-and-a-half to collapse and go up in smoke,' he said at the time, referring to efforts to tackle TB and HIV. BLOW TO CRITICAL RESEARCH South Africa is also a hub for research into both TB and HIV and the health experts say funding cuts risk derailing this vital work. The Treatment Action Group (TAG), a community-based research and policy think-tank, says about 39 clinical research sites and at least 20 TB trials and 24 HIV trials are at risk. 'Every major TB treatment and vaccine advance in the past two decades has relied on research carried out in South Africa,' said TAG TB project co-director Lindsay McKenna in a March statement. People struggling with poor nutrition and those living with HIV — the latter affects 8-million people in South Africa — were also more at risk of contracting TB, as aid cuts made them more vulnerable by derailing nutrition programmes, community outreach and testing, said Cathy Hewison, head of MSF's TB working group. 'It's the No 1 killer of people with HIV,' she said. In the Philippines, US cuts have disrupted TB testing in four USAID-funded projects, and affected the supply of drugs, Stop TB Partnership, a UN-funded agency said. 'The country has a nationwide problem with recurrent drug shortages, which is leading to a direct impact on efforts to eliminate TB,' said Ghazali Babiker, head of mission for MSF Philippines. In Pakistan, which has 510,000 TB infections each year, MSF said US cuts had disrupted TB screening in communities and other services in the hard-hit southeastern province of Sindh. 'We are worried that the US funding cuts that have impacted the community-based services will have a disproportionate effect on children, leading to more children with TB and more avoidable deaths,' said Ei Hnin Hnin Phyu, medical co-ordinator for MSF in Pakistan. 'We cannot afford to let funding decisions cost children's lives.'


Daily Maverick
a day ago
- Daily Maverick
Light is the science of the future — how Africans are using it to solve local challenges
Photonics is regarded as the science of the future and students and academics on the continent are making great strides in finding applications to address Africa's needs. Light is all around us, essential for one of our primary senses (sight) as well as life on Earth itself. It underpins many technologies that affect our daily lives, including energy harvesting with solar cells, light-emitting diode (LED) displays and telecommunications through fibre optic networks. The smartphone is a great example of the power of light. Inside the box, its electronic functionality works because of quantum mechanics. The front screen is an entirely photonic device: liquid crystals controlling light. The back of the phone too: white light-emitting diodes for a flash, and lenses to capture images. We use the word photonics, and sometimes optics, to capture the harnessing of light for new applications and technologies. Their importance in modern life is celebrated every year on 16 May with the International Day of Light. Despite the resource constraints under which they work, scientists on the African continent have made notable contributions to photonics research. Some of their research has been captured in a recent special issue of the journal Applied Optics. Along with colleagues in this field from Morocco and Senegal, we introduced this collection of papers, which aims to celebrate excellence and show the impact of studies that address continental issues. A spotlight on photonics in Africa Africa's history in formal optics goes back thousands of years, and references to lens design were already recorded in ancient Egyptian writings. In more recent times Africa has contributed to two Nobel prizes based on optics. Egyptian-born Ahmed Zewail watched the ultrafast processes in chemistry with lasers (1999, Nobel Prize for Chemistry) and Moroccan-born Serge Harouche studied the behaviour of individual particles of light, or photons (2012, Nobel Prize for Physics). Unfortunately, the African optics story is one of pockets of excellence. The highlights are as good as anywhere else, but there are too few of them to put the continent on the global optics map. According to a 2020 calculation done for us by the Optical Society of America, based on its journals, Africa contributes less than 1% to worldwide journal publications with optics or photonics as a theme. Yet there are great opportunities for meeting continental challenges using optics. Examples of areas where Africans can innovate are: Bridging the digital divide with modern communications infrastructure; Optical imaging and spectroscopy for improvements in agriculture and monitoring climate changes; Harnessing the sun with optical materials to produce clean energy; Bio-photonics to solve health issues; and Quantum technologies for novel forms of communicating, sensing, imaging and computing. The papers in the special journal issue touch on a diversity of continent-relevant topics. One is on using optics to communicate across free-space (air) even in bad weather conditions. This light-based solution was tested using weather data from two African cities, Alexandria in Egypt and Setif in Algeria. Another paper is about tiny quantum sources of quantum entanglement for sensing. The authors used diamonds, gems found in South Africa and more commonly associated with jewellery. Diamonds have many flaws, one of which can produce single photons as an output when excited. The single photon output was split into two paths, as if the particle went both left and right at the same time. This is the quirky notion of entanglement, in this case, created with diamonds. If an object is placed in any one path, the entanglement can detect it. Strangely, sometimes the photons take the left path but the object is in fact in the right path, yet still it can be detected. One contributor proposes a cost-effective method to detect and classify harmful bacteria in water. New approaches in spectroscopy (studying colour) for detecting cell health; biosensors to monitor salt and glucose levels in blood; and optical tools for food security all play their part in optical applications on the African continent. Another area of African optics research that has important applications is the use of optical fibres for sensing the quality of soil and its structural integrity. Optical fibres are usually associated with communication, but a modern trend is to use the optical fibre already laid to sense for small changes in the environment, for instance, as early warning systems for earthquakes. The research shows that conventional fibre can also be used to tell if soil is degrading, either from lack of moisture or some physical shift in structure (weakness or movement). It is an immediately useful tool for agriculture, building on many decades of research. The diverse range of topics in the collection shows how creative researchers on the continent are in using limited resources for maximum impact. The high orientation towards applications is probably also a sign that African governments want their scientists to work on solutions to real problems rather than purely academic questions. A case in point is South Africa, which has a funded national strategy (SA QuTI) to turn quantum science into quantum technology and train the workforce for a new economy. Towards a brighter future For young science students wishing to enter the field, the opportunities are endless. Although photonics has no discipline boundaries, most students enter through the fields of physics, engineering, chemistry or the life sciences. Its power lies in the combination of skills, blending theoretical, computational and experimental, that are brought to bear on problems. At a typical photonics conference there are likely to be many more industry participants than academics. That's a testament to its universal impact in new technologies and the employment opportunities for students. The previous century was based on electronics and controlling electrons. This century will be dominated by photonics, controlling photons. DM First published by The Conversation. Andrew Forbes is a professor at the University of the Witwatersrand. DM Patience Mthunzi-Kufa is a distinguished professor at the University of South Africa. Professor Zouheir Sekkat of Mohammed V University in Rabat, who is the director of the Pole of Optics and Photonics in the Moroccan Institute for Advanced Science, Innovation and Research at Mohamed VI Polytechnic University in Benguerir, Morocco, contributed to this article. This story first appeared in our weekly Daily Maverick 168 newspaper, which is available countrywide for R35.

IOL News
2 days ago
- IOL News
New insights into Paranthropus robustus: a landmark study on human evolution
Dr Palesa Madupe, Dr Claire Koeng and Dr Ioannis Patramanis. Image: Victor Yan Kin Lee In a landmark study that pushes the boundaries of our understanding of human evolution, a research team led by scholars from the University of Cape Town (UCT) and the University of Copenhagen has unveiled powerful insights into Paranthropus robustus—a close, extinct cousin of modern humans. Published in the prestigious journal Science, the study successfully harnesses two-million-year-old protein traces extracted from fossilised teeth, retrieved from the rich archaeological tapestry of South Africa's Cradle of Humankind. This pioneering research not only presents some of the oldest human genetic data ever recovered from Africa but also disrupts long-held beliefs about the biological make-up and diversity of one of our early hominin relatives. As Dr Palesa Madupe, co-lead of the study and a research associate at UCT's Human Evolution Research Institute (HERI), explained: 'By sampling multiple African Pleistocene hominin individuals classified within the same group, we're now able to observe sexual dimorphism and genetic variations that existed among them.' The central achievements of the study stem from advanced palaeoproteomic techniques and mass spectrometry, enabling researchers to identify sex-specific variants of amelogenin, a critical protein found in tooth enamel. Of the ancient individuals examined, two were confirmed as male, while innovative quantitative methodologies indicated that the others were female. Video Player is loading. Play Video Play Unmute Current Time 0:00 / Duration -:- Loaded : 0% Stream Type LIVE Seek to live, currently behind live LIVE Remaining Time - 0:00 This is a modal window. Beginning of dialog window. Escape will cancel and close the window. Text Color White Black Red Green Blue Yellow Magenta Cyan Transparency Opaque Semi-Transparent Background Color Black White Red Green Blue Yellow Magenta Cyan Transparency Opaque Semi-Transparent Transparent Window Color Black White Red Green Blue Yellow Magenta Cyan Transparency Transparent Semi-Transparent Opaque Font Size 50% 75% 100% 125% 150% 175% 200% 300% 400% Text Edge Style None Raised Depressed Uniform Dropshadow Font Family Proportional Sans-Serif Monospace Sans-Serif Proportional Serif Monospace Serif Casual Script Small Caps Reset restore all settings to the default values Done Close Modal Dialog End of dialog window. Advertisement Video Player is loading. Play Video Play Unmute Current Time 0:00 / Duration -:- Loaded : 0% Stream Type LIVE Seek to live, currently behind live LIVE Remaining Time - 0:00 This is a modal window. Beginning of dialog window. Escape will cancel and close the window. Text Color White Black Red Green Blue Yellow Magenta Cyan Transparency Opaque Semi-Transparent Background Color Black White Red Green Blue Yellow Magenta Cyan Transparency Opaque Semi-Transparent Transparent Window Color Black White Red Green Blue Yellow Magenta Cyan Transparency Transparent Semi-Transparent Opaque Font Size 50% 75% 100% 125% 150% 175% 200% 300% 400% Text Edge Style None Raised Depressed Uniform Dropshadow Font Family Proportional Sans-Serif Monospace Sans-Serif Proportional Serif Monospace Serif Casual Script Small Caps Reset restore all settings to the default values Done Close Modal Dialog End of dialog window. Next Stay Close ✕ 'Enamel is extremely valuable because it provides information both about biological sex and evolutionary relationships,' said Claire Koenig, co-lead and postdoctoral researcher at the University of Copenhagen's Centre for Protein Research. 'However, since identifying females relies on the absence of specific protein variants, it is crucial to rigorously control our methods to ensure confident results.' Adding to the intrigue of this study, another enamel protein—enamelin—uncovered unexpected genetic diversity. While two individuals shared a particular protein variant, a third displayed distinct characteristics, and a fourth exhibited both, prompting co-lead Ioannis Patramanis to remark, 'When studying proteins, specific mutations are thought to be characteristic of a species... we were surprised to discover that what we initially thought was a mutation uniquely describing Paranthropus robustus was actually variable within that group.' This revelation necessitates a critical re-evaluation of how ancient hominin species are classified, illustrating that genetic variability—beyond mere skeletal features—must be integral to our understanding of their complexity. 'With this data, we shed light on how evolution worked in the deep past and how recovering these mutations might help us understand genetic differences we see today,'Dr Madupe said. Living between 2.8 and 1.2 million years ago and walking upright, Paranthropus robustus likely coexisted with early members of the genus Homo. Although diverging on a different evolutionary path, their narrative remains crucial in chronicling the origins of modern humans. This study marks a significant advancement in palaeoproteomics within Africa and underscores the critical role of African scholars in rewriting the story of human history. 'As a young African researcher, I'm honoured to have significantly contributed to such a high-impact publication as its co-lead. However, the journey towards inclusivity for researchers of colour continues, and more of us need to be leading research like this,' reflected Dr Madupe. HERI at UCT is at the forefront of this transformative movement, having initiated innovative programmes that are imparting palaeoproteomic techniques to a new generation of African scientists, with a focus on expanding these training initiatives throughout the continent. 'We are excited about the capacity building that has come out of this collaboration. The future of African-led palaeoanthropology research is bright,' said Professor Rebecca Ackermann, co-director of HERI, as the team looks ahead to further discoveries that could reshape our understanding of human ancestry.