scholarly journals Whole-Genome Sequences of Chlamydia psittaci Strain HJ, Isolated from Meat Pigeons with Severe Respiratory Distress and High Mortality

2015 ◽  
Vol 3 (2) ◽  
Author(s):  
Qiang Zhang ◽  
Zongxue Wu ◽  
Ruixue Sun ◽  
Jun Chu ◽  
Er Han ◽  
...  
2014 ◽  
Vol 2 (3) ◽  
Author(s):  
J. Chu ◽  
R. Sun ◽  
Z. Wu ◽  
S. Liu ◽  
D. Li ◽  
...  

2021 ◽  
Author(s):  
Nanna Holm ◽  
Simone Bastrup Israelsen ◽  
Tamara Theresia Lund ◽  
Klaus Tjelle Kristiansen ◽  
Rikke Krogh-Madsen ◽  
...  

Abstract Background Moderate to severe respiratory distress among patients with coronavirus disease 2019 (COVID-19) is associated with a high mortality. Dexamethasone and remdesivir were introduced in the second wave of COVID-19 in Denmark. Methods This is a retrospective study of patients with COVID-19 and a supplemental oxygen requirement of ≥15 Liters per minute (L/min). The patients were divided in two groups corresponding to the first- and second wave of COVID-19 and analysed regarding need of ventilator support and mortality dependent on orders to Do Intubate (DI) or Do Not Intubate (DNI), respectively. Results The study included 178 patients. The mortality was 24% for patients with DI orders (n=115) and 81% for patients with DNI orders (n=63) increasing to 98% (n=46) for patients with DNI orders and very high flow oxygen requirements (≥30 L/min). Use of constant continuous positive airway pressure (cCPAP) increased from 71% in the first wave to 91% in the second wave (p<0.001) whereas the use of mechanical ventilation (MV) decreased from 54% to 28% (p=0.005). Conclusion The mortality was high for patients with DNI orders and respiratory distress with very high levels in supplemental oxygen in both the first and second wave of COVID-19 despite treatment with dexamethasone and remdesivir and improved prognosis for patients with DI orders. Hence careful evaluation on transition to palliative care must be considered for these patients. Study Registration The study was retrospectively registered and approved by the Danish Patient Safety Authority (record no. 31-1521-309) and the Regional Data Protection Center (record no. WZ20017637-2020-37).


Viruses ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1017
Author(s):  
Hirohisa Mekata ◽  
Tomohiro Okagawa ◽  
Satoru Konnai ◽  
Takayuki Miyazawa

Bovine foamy virus (BFV) is a member of the foamy virus family in cattle. Information on the epidemiology, transmission routes, and whole-genome sequences of BFV is still limited. To understand the characteristics of BFV, this study included a molecular survey in Japan and the determination of the whole-genome sequences of 30 BFV isolates. A total of 30 (3.4%, 30/884) cattle were infected with BFV according to PCR analysis. Cattle less than 48 months old were scarcely infected with this virus, and older animals had a significantly higher rate of infection. To reveal the possibility of vertical transmission, we additionally surveyed 77 pairs of dams and 3-month-old calves in a farm already confirmed to have BFV. We confirmed that one of the calves born from a dam with BFV was infected. Phylogenetic analyses revealed that a novel genotype was spread in Japan. In conclusion, the prevalence of BFV in Japan is relatively low and three genotypes, including a novel genotype, are spread in Japan.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Myat Htut Nyunt ◽  
Hnin Ohnmar Soe ◽  
Kay Thi Aye ◽  
Wah Wah Aung ◽  
Yi Yi Kyaw ◽  
...  

AbstractSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is a major health concern globally. Genomic epidemiology is an important tool to assess the pandemic of coronavirus disease 2019 (COVID-19). Several mutations have been reported by genome analysis of the SARS-CoV-2. In the present study, we investigated the mutational and phylogenetic analysis of 30 whole-genome sequences for the virus's genomic characteristics in the specimens collected in the early phase of the pandemic (March–June, 2020) and the sudden surge of local transmission (August–September, 2020). The four samples in the early phase of infection were B.6 lineage and located within a clade of the samples collected at the same time in Singapore and Malaysia, while five returnees by rescue flights showed the lineage B. 1.36.1 (three from India), B.1.1 (one from India) and B.1.80 (one from China). However, there was no evidence of local spread from these returnees. Further, all 19 whole-genome sequences collected in the sudden surge of local transmission showed lineage B.1.36. The surge of the second wave on SARS-CoV-2 infection was linked to the single-introduction of a variant (B.1.36) that may result from the strict restriction of international travel and containment efforts. These genomic data provides the useful information to disease control and prevention strategy.


2021 ◽  
Vol 20 ◽  
pp. 100649
Author(s):  
Xiaoran Zhao ◽  
Ruijun Li ◽  
Huifeng Dang ◽  
Luo Wang ◽  
Songzhe Fu ◽  
...  

2021 ◽  
Author(s):  
Montaha Al‐Iede ◽  
Mariam Khanfar ◽  
Luma Srour ◽  
Raja Rabah ◽  
Mousa Al‐Abbadi ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document