Sarah Perkins
@sarahperkins.bsky.social
Host-pathogen coevolution enthusiast🦠🩸PhD student at Harvard Chan SPH in malaria genomics🧬
Reposted by Sarah Perkins
In complex life cycles, selection should act less efficiently in bottleneck stages. Plasmodium parasites go from a few cells at infection to 100s of millions in the blood. Selection strength varies accordingly. Brilliant work by @sarahperkins.bsky.social
royalsocietypublishing.org/doi/10.1098/...
royalsocietypublishing.org/doi/10.1098/...
Heterogeneous constraint and adaptation across the malaria parasite life cycle | Proceedings of the Royal Society B: Biological Sciences
Evolutionary forces vary across genomes, creating disparities in how traits evolve. In organisms with complex life cycles, it is unclear how intrinsic differences among discrete life stages impact evolution. Here, we look for life history-driven patterns ...
royalsocietypublishing.org
November 12, 2025 at 4:41 PM
In complex life cycles, selection should act less efficiently in bottleneck stages. Plasmodium parasites go from a few cells at infection to 100s of millions in the blood. Selection strength varies accordingly. Brilliant work by @sarahperkins.bsky.social
royalsocietypublishing.org/doi/10.1098/...
royalsocietypublishing.org/doi/10.1098/...
Reposted by Sarah Perkins
This isn't even a slight exaggeration. He is actively working on destroying the US's entire vaccine infrastructure. The HepB vote will be tomorrow, where they will get rid of the birth dose and recommend it at 30 days, dooming a bunch of infants to chronic infection ft. cirrhosis, cancer, and death.
RFK Jr. is objectively pro-disease, pro-illness and pro-child death.
RFK Jr.-Backed Vaccine Panel Advises Against MMRV Vaccine for Young Children
New members of a key committee tweak routine childhood vaccine guidance as some states and insurers go their own way.
www.wsj.com
September 18, 2025 at 11:18 PM
This isn't even a slight exaggeration. He is actively working on destroying the US's entire vaccine infrastructure. The HepB vote will be tomorrow, where they will get rid of the birth dose and recommend it at 30 days, dooming a bunch of infants to chronic infection ft. cirrhosis, cancer, and death.
Reposted by Sarah Perkins
Absolutely devastating reporting from Hana Kiros on what "life-saving aid" has come to mean and not mean, and the many children dying as a result. www.theatlantic.com/health/archi...
‘In Three Months, Half of Them Will Be Dead’
Elon Musk promised to preserve lifesaving aid to foreign children. Then the Trump administration quietly canceled it.
www.theatlantic.com
April 21, 2025 at 11:50 PM
Absolutely devastating reporting from Hana Kiros on what "life-saving aid" has come to mean and not mean, and the many children dying as a result. www.theatlantic.com/health/archi...
Reposted by Sarah Perkins
Health Secretary Robert F. Kennedy Jr. is expected to attend the funeral of a child who died a preventable death in a measles outbreak fueled by vaccine hesitancy.
The last time his beliefs fueled a measles outbreak, they ran out of infant-sized coffins in Samoa. www.nbcnews.com/health/healt...
The last time his beliefs fueled a measles outbreak, they ran out of infant-sized coffins in Samoa. www.nbcnews.com/health/healt...
Decorated with butterflies, infant-sized coffins sent to measles-ravaged Samoa
Volunteers in the New Zealand city of Rotorua are preparing two dozen white-lined coffins to be transported to Samoa at the end of the week as the measles-ravaged Pacific island nation languishes under a growing death toll that has now hit 70.
www.reuters.com
April 6, 2025 at 1:12 PM
Health Secretary Robert F. Kennedy Jr. is expected to attend the funeral of a child who died a preventable death in a measles outbreak fueled by vaccine hesitancy.
The last time his beliefs fueled a measles outbreak, they ran out of infant-sized coffins in Samoa. www.nbcnews.com/health/healt...
The last time his beliefs fueled a measles outbreak, they ran out of infant-sized coffins in Samoa. www.nbcnews.com/health/healt...
Reposted by Sarah Perkins
“This is a wake-up call. People should be seeing this number and being very, very concerned, not just about butterflies, but about the state of insects in general”
www.nationalgeographic.com/animals/arti...
www.nationalgeographic.com/animals/arti...
1 in 5 butterflies in the U.S. have disappeared in the last 20 years
Researchers identified over 100 species that have dropped by more than 50 percent in the last two decades: "This is a wake-up call."
www.nationalgeographic.com
March 10, 2025 at 11:21 AM
“This is a wake-up call. People should be seeing this number and being very, very concerned, not just about butterflies, but about the state of insects in general”
www.nationalgeographic.com/animals/arti...
www.nationalgeographic.com/animals/arti...
Reposted by Sarah Perkins
Heterogeneous constraint and adaptation across the malaria parasite life cycle https://www.biorxiv.org/content/10.1101/2025.02.11.636054v1
February 13, 2025 at 3:31 AM
Heterogeneous constraint and adaptation across the malaria parasite life cycle https://www.biorxiv.org/content/10.1101/2025.02.11.636054v1
Reposted by Sarah Perkins
Critical and moving story by @stephanienolen.bsky.social, children, teenagers, adults all over the world, left in the lurch, abandoned by the reckless abandonment of USAID clinical trials.
February 6, 2025 at 8:40 PM
Critical and moving story by @stephanienolen.bsky.social, children, teenagers, adults all over the world, left in the lurch, abandoned by the reckless abandonment of USAID clinical trials.
Reposted by Sarah Perkins
For those living outside of endemic regions, malaria as a real and present threat seems far fetched. The undiagnosed mystery illness in Panzi, DRC appears to be Malaria compounded by social determinants of health. An outbreak fueled by poverty and lack of HC access.
www.reuters.com/world/africa...
www.reuters.com/world/africa...
Congo's health ministry says unknown disease is severe malaria
Democratic Republic of Congo's health ministry said on Tuesday that a previously unidentified disease circulating in the country's Panzi health zone is a severe form of malaria.
www.reuters.com
December 17, 2024 at 4:47 PM
For those living outside of endemic regions, malaria as a real and present threat seems far fetched. The undiagnosed mystery illness in Panzi, DRC appears to be Malaria compounded by social determinants of health. An outbreak fueled by poverty and lack of HC access.
www.reuters.com/world/africa...
www.reuters.com/world/africa...
Reposted by Sarah Perkins
🧪The 2025 Guarda Summer course is intended for master students and early PhD students in evolutionary biology.
14. - 21. June 2025 in the Swiss mountain village Guarda.
Web page with all details: tb.ethz.ch/education/gu...
Application is open now. Deadline is the 15. January 2025.
14. - 21. June 2025 in the Swiss mountain village Guarda.
Web page with all details: tb.ethz.ch/education/gu...
Application is open now. Deadline is the 15. January 2025.
Summer school:<br> Evolutionary Biology in Guarda
Information about the annual summer school Evolutionary Biology in Guarda
tb.ethz.ch
December 1, 2024 at 9:58 PM
🧪The 2025 Guarda Summer course is intended for master students and early PhD students in evolutionary biology.
14. - 21. June 2025 in the Swiss mountain village Guarda.
Web page with all details: tb.ethz.ch/education/gu...
Application is open now. Deadline is the 15. January 2025.
14. - 21. June 2025 in the Swiss mountain village Guarda.
Web page with all details: tb.ethz.ch/education/gu...
Application is open now. Deadline is the 15. January 2025.