Reva L. Katz, MSci.

@epireva.bsky.social

Retired Epidemiologist/Medical Officer Municipality of Anchorage; former CDC, FEMA. Old school, no nonsense.

Save your money. Large UK study investigating whether HEPA air filters can reduce spread of respiratory viruses showed they did not reduce the number of infections. Several previous studies from Australia, Germany, and Switzerland have reached similar conclusions. jamanetwork.com/journals/jam...

High-Efficiency Particulate Air Filters to Prevent Winter Respiratory Infections in Care Homes

This randomized clinical trial investigates whether high-efficiency particulate air filters in communal rooms and private bedrooms reduce respiratory infection episodes in care home residents.

jamanetwork.com

Measles virus RNA was detected in Anchorage wastewater samples collected on July 7, 8, 9, and 14, 2026. No confirmed human measles cases have been recently identified in Alaska. Measles case counts nationwide are exceeding levels not seen in more than 35 years.

Yesterday, FDA announced it was looking into new Cyclospora outbreak unrelated to previously reported ongoing outbreaks. FDA has started traceback investigation for this latest outbreak, which has sickened 72 people, but the source remains unknown. www.fda.gov/food/outbrea...

Investigations of Foodborne Illness Outbreaks

The following is a list of outbreak and adverse event investigations primarily being managed by FDA’s CORE Response Teams.

fda.gov

Since July 1, 2025, CDC does not track Cyclospora & made reporting cases optional. Your state may not offer testing or tracking. Until we know more, take care with lettuce, herbs, green onions, raspberries, & snow peas, all associated with past outbreaks. apnews.com/article/cycl...

Outbreak of diarrhea-causing parasite grows to more than 1,000 cases

Michigan is experiencing its largest outbreak of a parasitic infection that causes severe diarrhea. Nearly 1,000 people have been diagnosed with cyclospora as of Wednesday, though no deaths have been ...

apnews.com

Are you on Medicare and looking for affordable ($50 a month) way to get a GLP-1 without joining some weight loss service? This federal program begins July 1 and it is definitely worth reading about now, speaking with your doctor, then applying July 1st. www.cms.gov/medicare/cov...

Medicare GLP-1 Bridge | CMS

Centers for Medicare & Medicaid Services (CMS) announced the Better Approaches to Lifestyle and Nutrition for Comprehensive hEalth (BALANCE) Model and a separate short-term demonstration (now called t...

cms.gov

USDA confirms New World screwworm detected in 3-week-old calf in Zavala County, Texas, near US-Mexico border. A 20-km (12.4-mile) infested zone quarantine established & millions of sterile NWS flies will be released in Texas and Mexico in coming days. www.aphis.usda.gov/news/agency-...

USDA Confirms Presence of New World Screwworm in the United States | Animal and Plant Health Inspection Service

An official website of the United States government

aphis.usda.gov

New NASEM report Health and Safety Impacts of Aircraft Cabin Temperatures examines evidence how cabin temperatures, humidity conditions influence physiological, cognitive, & behavioral outcomes for passengers and flight attendants, incl serious though uncommon health impacts.

Health and Safety Impacts of Aircraft Cabin Temperatures

Commercial aircraft cabins expose passengers and flight attendants to a range of environmental conditions, including at times excessively hot or cold temperatures that may affect health, safety, and c...

nationalacademies.org

Erin Brockovich needs your help to map data centers that bring high energy consumption driving environmental impacts & costs, substantial water use to strain local supply, scalability pressures that can outpace local infrastructure, constant noise, etc. www.brockovichdatacenter.com

Brockovich Data Center Reporting – U.S. AI Data Center Awareness & Issue Map

Interactive map of major AI data centers across the United States — built or being built. Understand the community impact and report issues in your area.

brockovichdatacenter.com

Yale School of Public Health launched new Vaccines During Pregnancy webpage featuring downloadable info in English, Spanish. Topics include which vaccines recommended during pregnancy; vaccine safety for parent & baby; timing and spacing of vaccines; etc. ysph.yale.edu/research/inf...

Childhood Vaccinations Information Sheet | Yale School of Public Health

Explore essential information about childhood vaccinations through a comprehensive fact sheet, offering public health insights on safety, effectiveness, and the impact of childhood vaccinations. Learn...

ysph.yale.edu

FDA VRBPAC recommended XFG variant (hybrid of 2 Omicron subvariants) as target for fall’s COVID vaccines. Moderna, Sanofi data suggest targeting XFG triggers higher antibody response against circulating strains than Pfizer’s & Moderna’s current LP.8.1 vax. www.cidrap.umn.edu/covid-19/fda...

FDA vaccine advisers recommend XFG variant as target for fall’s updated COVID vaccines

XFG is a hybrid of 2 Omicron subvariants and has mutations linked to immune escape.

cidrap.umn.edu

Oregon Health Authority & Clackamas County said people may have been exposed at Providence Immediate Care – Happy Valley, 16180 S.E. Sunnyside Road, Suite 102, between 11:05 a.m. and 3:47 p.m. Tuesday, May 12, 2026. Speak with your doctor. www.oregon.gov/oha/erd/page...

Oregon Health Authority : Clinic in Clackamas County is latest measles exposure location : External Relations Division : State of Oregon

Clinic in Clackamas County is latest measles exposure location

oregon.gov

Wastewater monitoring forewarned of measles in New Mexico. A study finds that untreated wastewater tested positive for the measles virus days before people sought medical care. If you want wastewater testing in your community, help is available. DM me. jamanetwork.com/journals/jam...

Measles Wild-Type Virus Detection via Wastewater Surveillance

This cross-sectional study identifies positive detections of measles wild-type virus in wastewater in Sandoval County, New Mexico, and examines their associations with clinical cases and impacts on pu...

jamanetwork.com

Israel has confirmed its first case of Hantavirus in patient who contracted it during trip to Eastern Europe. The individual is in stable condition. The infection involves a European rodent-borne strain, not the person-to-person Andes strain. www.jpost.com/israel-news/...

First hantavirus case diagnosed in Israel after trip to Eastern Europe | The Jerusalem Post

However, unlike the outbreak of the South American Andes strain currently drawing attention aboard the MV Hondius cruise ship, the Israeli was infected with a European strain of the virus.

jpost.com