User profiles for "author:A P de Leon"

Antonio Ponce de Leon

Professor, Rio de Janeiro State University
Verified email at ims.uerj.br
Cited by 10738

Transmission of Mycobacterium tuberculosis from patients smear-negative for acid-fast bacilli

MA Behr, SA Warren, H Salamon, PC Hopewell… - The Lancet, 1999 - thelancet.com
Background The microscopic examination of sputum for acid-fast bacilli, is a simple and
rapid test that is used to provide a presumptive diagnosis of infectious tuberculosis. While …

[HTML][HTML] Rhipicephalus(Boophilus) microplus resistant to acaricides and ivermectin in cattle farms of Mexico

RI Rodríguez-Vivas, LC Pérez-Cogollo… - Revista Brasileira de …, 2014 - SciELO Brasil
Ticks and the diseases they transmit cause great economic losses to livestock in tropical
countries. Non-chemical control alternatives include the use of resistant cattle breeds …

Cattle tick vaccines: many candidate antigens, but will a commercially viable product emerge?

FD Guerrero, RJ Miller, AAP de León - International journal for parasitology, 2012 - Elsevier
The cattle tick, Rhipicephalus microplus, is arguably the world's most economically important
external parasite of cattle. Sustainable cattle tick control strategies are required to maximise …

Methodological issues in studies of air pollution and daily counts of deaths or hospital admissions.

J Schwartz, C Spix, G Touloumi… - … of Epidemiology & …, 1996 - jech.bmj.com
STUDY OBJECTIVE: To review the issues and methodologies in epidemiologic time series
studies of daily counts of mortality and hospital admissions and illustrate some of the …

Viral dynamics in patients with monkeypox infection: a prospective cohort study in Spain

C Suñer, M Ubals, EJ Tarín-Vicente… - The Lancet Infectious …, 2023 - thelancet.com
Background Monkeypox DNA has been detected in skin lesions, saliva, oropharynx, urine,
semen, and stool of patients infected during the 2022 clade IIb outbreak; however, the viral …

[HTML][HTML] Efficacy of interferon beta-1a plus remdesivir compared with remdesivir alone in hospitalised adults with COVID-19: a double-blind, randomised, placebo …

AC Kalil, AK Mehta, TF Patterson… - The lancet respiratory …, 2021 - thelancet.com
Background Functional impairment of interferon, a natural antiviral component of the
immune system, is associated with the pathogenesis and severity of COVID-19. We aimed to …

Air pollution and daily mortality in London: 1987-92

HR Anderson, AP de Leon, JM Bland, JS Bower… - Bmj, 1996 - bmj.com
Objective: To investigate whether outdoor air pollution levels in London influence daily
mortality. Design: Poisson regression analysis of daily counts of deaths, with adjustment for …

A consensus linkage map of the chicken genome

MAM Groenen, HH Cheng, N Bumstead… - Genome …, 2000 - genome.cshlp.org
A consensus linkage map has been developed in the chicken that combines all of the
genotyping data from the three available chicken mapping populations. Genotyping data …

Baricitinib versus dexamethasone for adults hospitalised with COVID-19 (ACTT-4): a randomised, double-blind, double placebo-controlled trial

CR Wolfe, KM Tomashek, TF Patterson… - The lancet respiratory …, 2022 - thelancet.com
Background Baricitinib and dexamethasone have randomised trials supporting their use for
the treatment of patients with COVID-19. We assessed the combination of baricitinib plus …

[PDF][PDF] Ectoparasites of cattle

AAP De León, RD Mitchell III, DW Watson - Veterinary Clinics of North …, 2020 - Elsevier
Ectoparasites of Cattle Page 1 1 CLINICS ARTICLE TITLE PAGE TEMPLATE 1 ARTICLE TITLE 2
Ectoparasites of Cattle 3 AUTHOR NAMES AND DEGREES 4 Full name and degrees of each …