Leonard Mvaya, PhD

Rory McIlroy wins his second Green Jacket. #themasters

A successful defense. Rory McIlroy is the 2026 Masters champion. #themasters

The Malawi kwacha isn’t “stable” at ~MWK 1,750/USD. It’s been administered there since March 2024. In Malawi: 🔒 Stable official MWK/USD rate 🧾 But deeply negative net FX reserves As of Dec 2025: Foreign liabilities (K2.1T) are ~10× gross reserves (K196B) → Net reserves: -K1.87T This isn’t an FX market. It’s a managed price under constraint. For international treasurers: • FX access is rationed • Repatriation is constrained Because you can’t fix the price of dollars if you don’t have dollars.

An at-home blood collection device for remote immune monitoring by high-parameter flow cytometry @JCI_insight @PrlicLab @fredhutch insight.jci.org/articles/view/…

Review @ImmunityCP @marcus_buggert @karolinskainst Memory T cell aging and rejuvenation cell.com/immunity/fullt…

Persistent IFN-I signaling inhibits mitochondrial oxidative metabolism in CD8+ T cells during HIV-1 infection under cART 🇨🇳 nature.com/articles/s4142…

Regulatory T cell-derived TGF-β signaling governs the differentiation and maintenance of tumor-infiltrating bystander CD8+ T cells dlvr.it/TRq8cz

Tens of thousands of publications from 2025 might include invalid references generated by AI, a Nature analysis suggests go.nature.com/4dnjvil

Prediction of #dementia from a single blood draw using AI Nature paper wow nature.com/articles/s4159…

Intestinal double negative T cells act as antigen presenting cells....the basis of oral tolerance? pubmed.ncbi.nlm.nih.gov/40750764/

For decades, we taught a simple rule: MHC I → CD8 T cells, MHC II → CD4 T cells. Turns out, that’s incomplete. MHC I doesn’t just help CD8s “see” cells — it also protects cells from CD4 T cell–driven killing.nature.com/articles/s4159…

Want to learn how to write an excellent omics paper? Read the scRNAseq Human Lung Aging paper from Dr. Naftali Kaminski lab @KaminskiMed 😆 lungaging.com 60 donors 200k cells 25 cell types Transcriptional Entropy🤠 is superior to gene expression level in predicting chronological age in some🫁cell types (general capillary Endothelial cell), but not others (AT1 AT2) Surfactant-hi HHIP-hi AT2 (⬇️with age) vs Stem-like AT2 (⬆️with age) A good example for use of GTEx RNAseq & SenMayo (which is not very straightforward sometimes) Cell type-specific somatic mutation burdens (3~7 mut/MB) @ruben_deman @NatureComms 2026 nature.com/articles/s4146…

Spatial Gut-Microbiome MegaTranscriptomics Use in situ polyadenylation on #Visium #StereoSeq to enhance host & bacterial RNA recovery (⏫99-fold) Fresh-frozen mouse GI Non-coding RNAs more enriched to gut wall Microorganisms enriched at Apc-deficient CRC tumor boundary @IwijnDeVlaminck @NatureMicrobiol 2026 nature.com/articles/s4156…

Nature research paper: Exposed phosphatidylserine is an inhibitory molecule in T cell exhaustion go.nature.com/4dINEsy

🇲🇼The Reserve Bank of Malawi hasn’t published a Monthly Economic Review since December 2025. The latest MPC statement offers only limited, selective data—mainly inflation. That’s usually a signal. When transparency declines, markets look elsewhere for the truth. And they always find it— in inflation and FX pressure.

CAR T cells are laboratory-engineered immune cells that provide effective treatment for some cancers. Progress is being made towards creating these cells in vivo go.nature.com/3NtYGY4

By today’s standards, he’d be considered 'unproductive.' x.com/cosmosarcive/s…

A rare and potentially fatal illness that might be linked to GLP-1 drugs is now causing alarm go.nature.com/4kTZX6S

Rush for funds to relocate laboratories to Europe is the latest hint of a US brain drain. go.nature.com/3NZcGZM