WHO updates bacterial priority pathogens list.
CIDRAP.UMN.edu article.
Pull quote: “Also new in the high-priority pathogen group is
fluoroquinolone-resistant Shigella, which is the second most common cause of
diarrheal mortality in all age-groups globally. Previously listed in the
medium-priority group, Shigella primarily affects children in the developing
countries where it is prevalent, but the WHO notes that multidrug-resistant
Shigella strains are being increasingly reported in men who have sex with men
in urban areas in high-income countries, suggesting a shift in AMR trends.”
Elevated carbon dioxide lets Sars-CoV-2 live far longer
in droplets. ChemistryWorld.com article.
Pull quote: “‘To understand viral decay in respiratory aerosol, one needs to
understand the complex pH dynamics occurring in the respiratory droplet,’ says
Haddrell. ‘There is a significant amount of bicarbonate in respiratory fluid.
When the bicarbonate leaves the aerosol in the form of CO2, it takes with it a
large amount of acid. This results in a dramatic shift in pH of the droplet
from neutral to more than 10. The high pH that respiratory aerosol reaches
following exhalation is a major driver of viral decay. Thus, anything that
reduces the pH of the aerosol will significantly prolong the time the virus
will remain infectious in the air, consequently increasing overall transmission
risk.’ Higher environmental carbon dioxide levels mean that the chemical
equilibrium of the droplets is shifted and less bicarbonate decomposes, making
the aerosols’ pH more acidic and hospitable to viruses.”
Wastewater testing finds H5N1 avian flu in 9 Texas cities.
CIDRAP.UMN.edu article.
Pull quote: “In a May 10 response update, the CDC said more than 260
people have so far been monitored for H5N1 symptoms following exposure to
infected or potentially infected animals. Of at least 33 who had flulike
symptoms, no additional human cases have been reported beyond an initial case
in a Texas dairy worker who had conjunctivitis.”
This Year’s La Niña Could Worsen Atlantic Hurricane
Season. ScientificAmerican.com article.
Short explainer. Pull quote: “Normally, air rises over the Amazon and Indonesia
because moisture from the tropical forests makes the air more buoyant there,
and it comes down in East Africa and the eastern Pacific. During La Niña, those
loops intensify, generating stormier conditions where they rise and drier
conditions where they descend. During El Niño, ocean heat in the eastern
Pacific instead shifts those loops, so the eastern Pacific gets stormier.”
Researchers studying ‘doomsday glacier’ make worrying
discovery. TheHill.com article.
Pull quote: ““It will take many decades, not centuries” for the Thwaites
Glacier to fully melt,” Rignot told USA Today. “Part of the answer also depends
on whether our climate keeps getting warmer or not, which depends completely on
us and how we manage the planet.””
Di-isodecyl Phthalate (DIDP) and Di-isononyl Phthalate
(DINP); Science Advisory Committee on Chemicals (SACC) Peer Review of Draft
Documents; Notice of SACC Meeting; Availability; and Request for Comment.
Federal Register EPA notice.
Summary: “The Environmental Protection Agency (EPA or “Agency”) is announcing
the availability of and soliciting public comment on the draft
manufacturer-requested risk evaluation for Di-isodecyl Phthalate (DIDP) and the
draft physical chemical, fate, and hazard assessments for Di-isononyl Phthalate
(DINP) prepared under the Toxic Substances Control Act (TSCA). The draft
documents will also be submitted to the Science Advisory Committee on Chemicals
(SACC) for peer review. EPA is also announcing that there will be two virtual
public meetings of the SACC: On July 23, 2024, for the SACC to consider the
scope and clarity of the draft charge questions for the peer review; and on
July 30-August 2, 2024, for the SACC to consider the draft documents and public
comments for peer review.”
Fall 2024 Cybersecurity and Infrastructure Security
Agency SBOM-a-Rama; Meeting. Federal Register CISA event
notice. Summary: “CISA will facilitate a public event to build on existing
community-led work around Software Bill of Materials (SBOM) on specific SBOM
topics. The first goal of this two-day event is to help the broader software
and security community understand the current state of SBOM. Secondly, this
event will foster discussion between organizations interested in exploring SBOM
automation solutions and those focusing on open source and proprietary tools.”
Event Dates: September 11th and 12th, 2024.