Johns Hopkins Malaria Research Institute

@jhmrimalaria

Leading Science for a Malaria-Free World. At the Bloomberg School of Public Health.

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Johns Hopkins Malaria Research Institute@jhmrimalaria· 29d

New @cam.ac.uk research: early humans actively avoided #malaria hotspots for 10s of thousands of years. Then, 15K years ago, a genetic mutation changed everything. Study author Dr. Andrea Manica is our guest on the #MosquitoMinute. Listen on Spotify or Apple.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Jul 14

The search for a pesticide that’s safe, affordable and that won’t harm the environment led George Dimopoulos, PhD and his team at the Johns Hopkins #Malaria Research Institute to explore a naturally occurring bacterium that they determined is highly toxic to #mosquitoes.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Jul 13

The latest episode of the #Mosquito Minute features Sonia Shah, author of the excellent book "The Fever: How Malaria Has Ruled Humankind for 500,000 Years." Shah talks about the long history of #malaria, which dates back to prehistoric times. Stream this and all episodes on Spotify!

Johns Hopkins Malaria Research Institute@jhmrimalaria· Jun 24

Dr. Joanna Konopka of @jhu.edu studies why and how #mosquitoes bite us. She works in Dr. Christopher Potter's #neuroscience lab at @hopkinsmedicine.bsky.social.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Jun 11

Exciting news from the 10th Asia Pacific Leaders’ Summit on Malaria Elimination held last week in Vientiane! Combining case management, vector control & community engagement programs, Laos reduced indigenous #malaria cases from 15,497 in 2016 to just 269 in 2024.

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 27

Whether or not you're at the 29th annual Vector Encounter tomorrow and Friday at the Johns Hopkins Malaria Research Institute, follow us here for highlights, interviews and fun from Baltimore! #VectorEncounter2026

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 14

“The news from this study is encouraging. It demonstrates that, though the vaccine is far from perfect, it is a vital tool in the fight against malaria. We look forward to improving both RTS,S and R21 to save even more lives.” - Fidel Zavala, MD professor and malaria researcher at the Johns Hopkins Bloomberg School of Public Health.

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 14

RTS,S, also known as Mosquirix, was approved in 2021 by the World Health Organization has shown to reduce severe malaria in children 5-36 months old by about 30%.
Another vaccine, R21, was WHO-approved in 2024, and showed more than 70% efficacy in trials.
Both vaccines require multiple doses spaced months apart.

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 14

The authors report that, between 2019 and 2023, the malaria vaccine “was associated with a significant reduction in mortality in young children, averting about one in eight deaths, in areas with moderate coverage of three doses of the vaccine and low uptake of the fourth dose.”

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 14

The study, published last week in The Lancet and authored by a global consortium of researchers, data scientists and public health officials, evaluated a program in Ghana, Kenya and Malawi designed to distribute and administer the RTS,S malaria vaccine.

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 14

A study published last week in The Lancet reported that, between 2019 and 2023, the RTS,S #malaria vaccine averted 1 in 8 child deaths from the disease.

two young children playing in water smile for the camera.

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 12

Join us in Baltimore on May 28 & 29 for our 29th annual Vector Encounter. Kick off summer with learning, networking & fun with many of the world's leading vector experts. When you register, don't forget to add Thursday's Maryland steamed crab feast! 🦀🔨 publichealth.jhu.edu/malaria-rese...

A purple art card with the silhouette of a mosquito reminding you to register for the 29th annual Vector Encounter at Johns Hopkins in Baltimore. Web address https://publichealth.jhu.edu/malaria-research-institute/2026-vector-encounter and a QR code

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 11

"real progress against malaria" -- “We’re pleased to have access to the expertise and wisdom of this distinguished group of scientists, public health leaders and advocates,” said Johns Hopkins Malaria Research Institute director Jane Carlton. “We look forward to working with the Board of Advisors to make real progress in the fight against malaria.”

The new Board of Advisors had its first meeting in April in Washington, DC following JHMRI’s day-long event to mark the 25th anniversary of the Institute’s founding and World Malaria Day.

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 11

the board of advisors: Ashley J. Birkett, PhD - USA
Global Head, Bacterial and Parasitic Diseases
Center for Vaccine Innovation and Access
PATH

Elizabeth Chizema, MPH, MD – Zambia
Zambia End Malaria Council Coordinator
African Leaders Malaria Alliance

Mesay Hailu, MPH, PhD – Ethiopia
Director General, Ethiopian Public Health Institute

Margaret McDonnell – USA
Executive Director, United to Beat Malaria
United Nations Foundation

Laura Norris, PhD – USA
Senior Program Officer
Gates Foundation

David B. Olsen, PhD – USA
Former Scientific Associate VP
Neglected Tropical Diseases Discovery Lead
Merck Research Laboratories

Eleanor Riley, PhD – UK
Professor Emeritus of Immunology and Infectious Disease
The University of Edinburgh

Michael Santos, PhD – USA
Senior Vice President and Chief Population Health Officer
The Foundation for the National Institutes of Health

Johns Hopkins Malaria Research Institute@jhmrimalaria· May 11

The Johns Hopkins Malaria Research Institute is pleased to announce the appointment of an eight-member Board of Advisors. The board, comprised of experts from a wide array of fields, provides counsel, advice and support to the Institute on an ad-hoc basis.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Apr 13

A clip from a media briefing on the global state of #malaria with experts from the Johns Hopkins Malaria Research Institute. Dr. William Moss addressed a question about maintaining progress against malaria in countries that relied heavily on US funding to fight the disease.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Apr 8

A clip from an April 8 media briefing on the global state of #malaria with experts from the Johns Hopkins Malaria Research Institute. Institute director Dr. Jane Carlton addressed a question about recent increases in malaria cases in countries where the disease is endemic.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Apr 3

Join us in #Baltimore on Thursday and Friday, May 28 & 29 for our 29th annual Vector Encounter. Kick off your summer with learning, networking and fun with many of the world's leading #vector experts. For more info and to sign up, go to tinyurl.com/4y4cbwce

Silhouette of a mosquito. Text reads "don't forget to register to vector encounter at Johns Hopkins in Baltimore. May 28 and 29, 2026 at the Johns Hopkins Bloomberg School of Public Health.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Mar 18

Join us in Baltimore on May 28 & 29 for our 29th annual Vector Encounter. Kick off summer with learning, networking & fun with many of the world's leading vector experts. And when you register, don't forget to add Thursday evening's Maryland steamed crab feast!🦀 publichealth.jhu.edu/malaria-rese...

Flyer with a green background announcing the 29th annual Vector Encounter meeting in Baltimore on May 28 and 29, 2026. Sponsored by the Johns Hopkins Malaria Research Institute, part of the JHU School of Public Health.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Mar 16

You've got good taste. Did you know that mosquitoes can taste with their mouths, an internal organ called the cibarium ... and with their feet?

Anopheles mosquitoes legs have five sections. The tarsal section, which is what they walk on, contains chemoreceptors, or taste organs, that allow them to taste a surface as soon as they land on it.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Mar 2

Read the whole study here. tinyurl.com/rkesjzpx

The work from researchers at the University of Manchester (UK) and the Johns Hopkins Malaria Research Institute director Jane Carlton
traced the evolutionary history of A. leucosphyrus
by examining the rates at which certain genes mutated.

The journal authors found that the mosquitoes were biting humans in parts of what are now India, Indonesia, Malaysia, Sumatra and Java almost 2 million years before other mosquito species adapted to feeding on us.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Mar 2

A team of researchers found that #mosquitoes have been feeding on humans far longer than we realized. JHMRI Director Jane Carlton and colleagues published their findings in @nature.com Scientific Reports on Feb 26.

Before mosquitoes fed on humans, they fed on our ancestors. An article published Thursday in the journal Nature Scientific Reports analyzed DNA from 11 species of Anopheles leucosphyrus mosquito to find that, 1.8 million years ago in parts of Southeast Asia, the mosquitoes evolved from feeding on non-human primates to biting Homo erectus, the last common ancestor of Neanderthals, Denisovans and us -- modern humans.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Feb 26

The Naked Scientists featured our director Jane Carlton on their "Titans of Science" podcast series this week.🔬🧬 Here, Dr. Carlton discusses the Plasmodium vivax parasite, which can cause #malaria months or even years after a bite from an infected #mosquito. 1/2

Johns Hopkins Malaria Research Institute@jhmrimalaria· Feb 19

Minutes after an infected #mosquito bite: watch 2 green #sporozoites in the white circle wiggle their way into blood vessels and zoom off to the liver, where they'll meet up, mature & multiply like crazy, causing a #malaria infection. Thanks to Dr. @christineshopp.bsky.social for the vid!

Johns Hopkins Malaria Research Institute@jhmrimalaria· Feb 11

The latest episode of the Naked Scientists podcast is all about the most dangerous creature on earth ... the #mosquito. 🦟🩸 @johnshopkinssph.bsky.social mosquito expert Dr. Conor McMeniman explains how the bugs find people to bite. Hear the whole episode wherever you get your favorite podcasts!

Johns Hopkins Malaria Research Institute@jhmrimalaria· Dec 16

In 1900, a Plainville, Connecticut company offered "Prior's Ague Cure," promising to "cure malaria in any form or money refunded." Ague, (AYG-yoo) is an antiquated synonym for #malaria. The last recorded outbreak in CT was in 1912. The US eliminated the disease in 1951.

Newspaper advertisement from the year 1900. The product promises to "cure malaria in any form or money refunded." It's called Prior's Ague Cure, "ague" being an antiquated term for malaria. "Ask your druggist for it. P.J. Prior, Plainville, CT."

Johns Hopkins Malaria Research Institute@jhmrimalaria· Dec 11

Following the @who.int World #Malaria Report, Dr. Jane Carlton, director of the Johns Hopkins Malaria Research Institute, spoke with @gohealio.bsky.social. Despite funding shortfalls, increases in infections and deaths, and other alarming trends, Dr. Carlton remains hopeful. tinyurl.com/3rdb5ctz

Johns Hopkins Malaria Research Institute@jhmrimalaria· Nov 25

Statement from @johnshopkinssph.bsky.social #malaria expert William Moss, MD, MPH on Gavi Vaccine Alliance and @unicef.org announcement making vaccines more affordable. Moss calls it "a major step" in the fight against malaria.

Statement from @JohnsHopkins #malaria expert William Moss, MD, MPH on @gavi and @UNICEF announcement of making vaccines more affordable. Moss calls it "a major step" in the fight against malaria.

Johns Hopkins Malaria Research Institute@jhmrimalaria· Nov 18

In sub-Saharan Africa, mothers often carry their babies on their backs in colorful cotton wraps called lesu 🦟 Could treating these wraps with insecticide help prevent #malaria? 🎙️ publichealth.jhu.edu/malaria-rese...