scholarly journals Who acquires infection from whom? Estimating herpesvirus transmission rates between wild rodent host groups

Epidemics ◽  
2021 ◽  
pp. 100451
Author(s):  
Diana Erazo ◽  
Amy B. Pedersen ◽  
Kayleigh Gallagher ◽  
Andy Fenton
2005 ◽  
Vol 273 (1588) ◽  
pp. 775-782 ◽  
Author(s):  
David Carslake ◽  
Malcolm Bennett ◽  
Sarah Hazel ◽  
Sandra Telfer ◽  
Michael Begon

Author(s):  
Anna-Katarina Schilling ◽  
Charlotte Avanzi ◽  
Rainer G. Ulrich ◽  
Philippe Busso ◽  
Benoit Pisanu ◽  
...  

Zootaxa ◽  
2011 ◽  
Vol 3001 (1) ◽  
pp. 49 ◽  
Author(s):  
YI YAN ◽  
DAO-CHAO JIN ◽  
XIAN-GUO GUO ◽  
JIAN-JUN GUO

Mites were collected from leaf litter and the fur of a wild rodent (Niviventer fulvescens ) in Guizhou Province of China, and described as Podocinum guizhouense sp. nov. (Podocinidae). This is the first report of Podocinidae from a wild rodent host, but this ecological association may be accidental. A key to the females of Podocinum from China is provided.


Author(s):  
Rebecca A Zimler ◽  
Donald A Yee ◽  
Barry W Alto

Abstract Recurrence of local transmission of Zika virus in Puerto Rico is a major public health risk to the United States, where mosquitoes Aedes aegypti (Linnaeus) and Aedes mediovittatus (Coquillett) are abundant. To determine the extent to which Ae. mediovittatus are capable of transmitting Zika virus and the influence of viremia, we evaluated infection and transmission in Ae. mediovittatus and Ae. aegypti from Puerto Rico using serial dilutions of infectious blood. Higher doses of infectious blood resulted in greater infection rates in both mosquitoes. Aedes aegypti females were up to twice as susceptible to infection than Ae. mediovittatus, indicating a more effective midgut infection barrier in the latter mosquito species. Aedes aegypti exhibited higher disseminated infection (40–95%) than Ae. mediovittatus (<5%), suggesting a substantial midgut escape barrier in Ae. mediovittatus. For Ae. aegypti, transmission rates were low over a range of doses of Zika virus ingested, suggesting substantial salivary gland barriers.


Author(s):  
Hayley A Thompson ◽  
Andria Mousa ◽  
Amy Dighe ◽  
Han Fu ◽  
Alberto Arnedo-Pena ◽  
...  

Abstract Background Understanding the drivers of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) transmission is crucial for control policies, but evidence of transmission rates in different settings remains limited. Methods We conducted a systematic review to estimate secondary attack rates (SARs) and observed reproduction numbers (Robs) in different settings exploring differences by age, symptom status, and duration of exposure. To account for additional study heterogeneity, we employed a beta-binomial model to pool SARs across studies and a negative-binomial model to estimate Robs. Results Households showed the highest transmission rates, with a pooled SAR of 21.1% (95% confidence interval [CI]:17.4–24.8). SARs were significantly higher where the duration of household exposure exceeded 5 days compared with exposure of ≤5 days. SARs related to contacts at social events with family and friends were higher than those for low-risk casual contacts (5.9% vs 1.2%). Estimates of SARs and Robs for asymptomatic index cases were approximately one-seventh, and for presymptomatic two-thirds of those for symptomatic index cases. We found some evidence for reduced transmission potential both from and to individuals younger than 20 years of age in the household context, which is more limited when examining all settings. Conclusions Our results suggest that exposure in settings with familiar contacts increases SARS-CoV-2 transmission potential. Additionally, the differences observed in transmissibility by index case symptom status and duration of exposure have important implications for control strategies, such as contact tracing, testing, and rapid isolation of cases. There were limited data to explore transmission patterns in workplaces, schools, and care homes, highlighting the need for further research in such settings.


Author(s):  
Thomas F. Johnson ◽  
Lisbeth A. Hordley ◽  
Matthew P. Greenwell ◽  
Luke C. Evans

Author(s):  
Ilze Brila ◽  
Anton Lavrinienko ◽  
Eugene Tukalenko ◽  
Frauke Ecke ◽  
Ilia Rodushkin ◽  
...  

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