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Infectious Diseases

The threat of mpox has returned, but public knowledge about it has declined
A microscopic view of the mpox virus.

Image: iStock/Dr_Microbe

The threat of mpox has returned, but public knowledge about it has declined

A national survey conducted by the Annenberg Public Policy Center in July finds that Americans lack understanding and concern about mpox, highlighting a need for more public health outreach and communication about mpox contagion and vaccines.

From the Annenberg Public Policy Center

Exploring the 1918 pandemic’s impact on Philadelphia’s Black and immigrant neighborhoods
Matthew Breier reads city directory.

Matthew Breier, a rising third-year student in the College of Arts and Sciences, spent a lot of time going through Philadelphia’s 1918 city directory this summer. Through the Penn Undergraduate Research Mentoring Program, he is helping professor David Barnes understand the impact of the 1918 influenza pandemic on the city’s Black and immigrant neighborhoods.

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Exploring the 1918 pandemic’s impact on Philadelphia’s Black and immigrant neighborhoods

Rising third-year Matthew Breier has been conducting research with public health historian David Barnes through the Penn Undergraduate Research Mentoring Program.
Fueling the next epidemic of HIV in Philadelphia: the boomerang effect of curtailing syringe exchange services for people who inject drugs
Philadelphia Tribune

Fueling the next epidemic of HIV in Philadelphia: the boomerang effect of curtailing syringe exchange services for people who inject drugs

Florence Momplaisir of the Leonard Davis Institute and Perelman School of Medicine and Perelman’s Ronald Collman write that the recent Philadelphia city budget removing funding for syringe exchange will harm the city’s population.

How deadly parasites choose to be male
Transcription atlas of Cryptosporidium life cycle.

Penn Vet researchers developed the Cryptosporidium single-cell atlas, revealing which genes are expressed at which points across the parasite’s life cycle. On the left, the atlas shows parasites replicating asexually in green, with males in blue and females in pink. On the right, micrographs of the stages are shown, with their nuclei highlighted in green.

(Image: Boris Striepen)

How deadly parasites choose to be male

Penn Vet researchers reveal the gene expression across the life cycle of Cryptosporidium and identify the determinant of maleness.