and city or county jurisdictions independently funded for HIV surveillance: California (including Los Angeles County and San Francisco), District of Columbia, Georgia, Illinois (including Chicago), and New York (excluding New York City).preventive care should be routinely offered to persons evaluated for monkeypox, with linkage to HIV care or HIV preexposure prophylaxis (PrEP) as appropriate.Eight health departments matched probable and confirmed cases of monkeypox † diagnosed through July 22, 2022, and occurring among persons aged ≥18 years, to local HIV and STI surveillance data using individually established methods that included various personal identifiers (e.g., name, † https://www.cdc.gov/poxvirus/monkeypox/clinicians/case-definition.html INSIDE
of the borohydride before reaction with the aldehyde, and the error can be eliminated if the solvent is made Q.01AÍ in sodium hydroxide. The n-alkyl aldehydes react rapidly enough that the hydrolysis is negligible even in the absence of base. In each case where sodium hydroxide was used, a sample of the aldehyde was allowed to stand in the Q.OlAf base at 45°C. for 30 minutes before titration, and in no case were the titration results significantly different from those in which the aldehyde was titrated immediately.Furfural and o-me thoxy benzaldehyde, even when titrated in base at 45°C ., gave high results because of the slowness of the borohydride reduction.Cinnamaldehyde, p-hydroxybenzaldehyde, p-dimethylaminobenzaldehyde, vanillin, and anisaldehyde were even more unreactive and could not be determined by this titration procedure.Presumably, any of the aldehydes listed by Jensen (1) as having a rate constant less than 40 liter mole-1 minute-1 would also be too unreactive for accurate titration, Formaldehyde, hemiacetalforming aldoses, and other compounds which do not show the characteristic carbonyl absorption peak in water can not be determined by this method since no change in absorbance can be detected.Peroxides and some ketones will cause serious interference in the method. Ketones in general are much less reactive toward borohydride than are aldehydes but certain ketones such as acetone and cyclohexanone are readily reduced. Less reactive ketones such as methyl hexyl ketone or acetophenone will not cause interference unless their concentration greatly exceeds that of the aldehyde being determined.Compounds containing acidic hydrogen atoms will decompose the borohydride titrant, but these may be neutralized before titration is initiated.Functional groups which are not reduced" by borohydride in this medium include anhydrides, esters, amides, imides, acetals, nitriles, halides, and carbon-carbon double bonds. LITERATURE CITED(1) Jensen, E. ., "A Study on Sodium Borohydride," Nyt Nordisk Forlay
The California Arbovirus Surveillance Program was initiated over 50 years ago to track endemic encephalitides and was enhanced in 2000 to include West Nile virus (WNV) infections in humans, mosquitoes, sentinel chickens, dead birds and horses. This comprehensive statewide program is a function of strong partnerships among the California Department of Public Health (CDPH), the University of California, and local vector control and public health agencies. This manuscript summarizes WNV surveillance data in California since WNV was first detected in 2003 in southern California. From 2003 through 2018, 6,909 human cases of WNV disease, inclusive of 326 deaths, were reported to CDPH, as well as 730 asymptomatic WNV infections identified during screening of blood and organ donors. Of these, 4,073 (59.0%) were reported as West Nile neuroinvasive disease. California’s WNV disease burden comprised 15% of all cases that were reported to the U.S. Centers for Disease Control and Prevention during this time, more than any other state. Additionally, 1,299 equine WNV cases were identified, along with detections of WNV in 23,322 dead birds, 31,695 mosquito pools, and 7,340 sentinel chickens. Annual enzootic detection of WNV typically preceded detection in humans and prompted enhanced intervention to reduce the risk of WNV transmission. Peak WNV activity occurred from July through October in the Central Valley and southern California. Less than five percent of WNV activity occurred in other regions of the state or outside of this time. WNV continues to be a major threat to public and wild avian health in California, particularly in southern California and the Central Valley during summer and early fall months. Local and state public health partners must continue statewide human and mosquito surveillance and facilitate effective mosquito control and bite prevention measures.
Background Information on U.S. COVID-19 mortality rates by occupation is limited. We aimed to characterize 2020 COVID-19 fatalities among working Californians to inform preventive strategies. Methods We identified laboratory-confirmed COVID-19 fatalities with dates of death in 2020 by matching death certificates to the state’s COVID-19 case registry. Working status for decedents aged 18–64 years was determined from state employment records, death certificates, and case registry data and classified as “confirmed working,” “likely working,” or “not working.” We calculated age-adjusted overall and occupation-specific COVID-19 mortality rates using 2019 American Community Survey denominators. Results COVID-19 accounted for 8,050 (9.9%) of 81,468 fatalities among Californians 18–64 years old. Of these decedents, 2,486 (30.9%) were matched to state employment records and classified as “confirmed working.” The remainder were classified as “likely working” (n = 4,121 [51.2%]) or “not working” (n = 1,443 [17.9%]) using death certificate and case registry data. Confirmed and likely working COVID-19 decedents were predominantly male (76.3%), Latino (68.7%), and foreign-born (59.6%), with high school or less education (67.9%); 7.8% were Black. The overall age-adjusted COVID-19 mortality rate was 30.0 per 100,000 workers (95% confidence interval [CI], 29.3–30.8). Workers in nine occupational groups had age-adjusted mortality rates higher than this overall rate, including those in farming (78.0; 95% CI, 68.7–88.2); material moving (77.8; 95% CI, 70.2–85.9); construction (62.4; 95% CI, 57.7–67.4); production (60.2; 95% CI, 55.7–65.0); and transportation (57.2; 95% CI, 52.2–62.5) occupations. While occupational differences in mortality were evident across demographic groups, mortality rates were three-fold higher for male compared with female workers and three- to seven-fold higher for Latino and Black workers compared with Asian and White workers. Conclusion Californians in manual labor and in-person service occupations experienced disproportionate COVID-19 mortality, with the highest rates observed among male, Latino, and Black workers; these occupational group should be prioritized for prevention.
Urban informal settlements are often under-recognized in national and regional surveys. A lack of quality intra-urban data frequently contributes to a one-size-fits-all public health intervention and clinical strategies that rarely address the variegated socioeconomic disparities across and within different informal settlements in a city. The 2010 Brazilian census gathered detailed population and place-based data across the country's informal settlements. Here, we examined key socio-demographic and infrastructure characteristics that are associated with health outcomes in Rio de Janeiro with the census tract as the unit of analysis. Many of the city's residents (1.39 million people, 22 % of the population) live in informal settlements. Residents of census tracts in Rio de Janeiro's urban informal areas are younger, (median age of 26 versus 35 years in formal settlements), and have less access to adequate water (96 versus 99 % of informal households), sanitation (86 versus 96 %), and electricity (67 versus 92 %). Average per household income in informal settlement census tracts is less than one third that of non-informal tracts (US\$708 versus US\$2362). Even among informal settlements in different planning areas in the same city, there is marked variation in these characteristics. Public health interventions, clinical management, and urban planning policies aiming to improve the living conditions of the people residing in informal settlements, including government strategies currently underway, must consider the differences that exist between and within informal settlements that shape place-based physical and social determinants of health.
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