scholarly journals SARS-CoV-2 infection incidence during the first and second COVID-19 waves in Italy

2021 ◽  
Vol 197 ◽  
pp. 111097
Author(s):  
Marco Vinceti ◽  
Tommaso Filippini ◽  
Kenneth J. Rothman ◽  
Silvia Di Federico ◽  
Nicola Orsini
Keyword(s):  
Infection Incidence

Forecast of COVID-19 Trend Following Countrywide Movement Control Order in Malaysia: SEIR Model Approach (Preprint)

2020 ◽  
Author(s):  
Aidalina Mahmud ◽  
Poh Ying Lim ◽  
Hayati Kadir Shahar
Keyword(s):  
Mathematical Model ◽  
Incidence Rate ◽  
Movement Control ◽  
Seir Model ◽  
Infection Incidence ◽  
Contact Rates ◽  
Exposed Population ◽  
Control Order ◽  
Future Work ◽  
Model Approach

BACKGROUND On March 18, 2020, the Malaysian government implemented Movement Control Order (MCO) to limit the contact rates among the population and infected individuals. OBJECTIVE The objective of this study was to forecast the trend of the COVID-19 epidemic in Malaysia in terms of its magnitude and duration. METHODS Data for this analysis was obtained from publicly available databases, from March 17 until March 27, 2020. By applying the Susceptible, Exposed, Infectious and Removed (SEIR) mathematical model and several predetermined assumptions, two analyses were carried out: without and with MCO implementation. RESULTS Without MCO, it is forecasted that it would take 18 days to reach the peak of infection incidence. The incidence rate would plateau at day 80 and end by day 94, with 43% of the exposed population infected. With the implementation of the MCO, it is forecasted that new cases of infection would peak at day 25, plateau at day 90 and end by day 100. At its peak, the infection could affect up to about 40% of the exposed population. CONCLUSIONS It is forecasted that the COVID-19 epidemic in Malaysia will subside soon after the mid-year of 2020. Although the implementation of MCO can flatten the epidemiological curve, it also prolongs the duration of the epidemic. The MCO can result in several unfavorable consequences in economic and psychosocial aspects. A future work of an exit plan for the MCO should also be devised and implemented gradually. The exit plan raises several timely issues of re-infection resurgence after MCO are lifted.

INFLUENCE ON MYCORRIHIZAL INFECTION INCIDENCE OF BLUEBERRY IN DIFFERENT ORGANIC MATERIALS

2014 ◽  
pp. 531-537 ◽  
Author(s):  
Tang Xuedong ◽  
Li Yadong ◽  
Liu Xiaojia ◽  
Wu Lin ◽  
Zhang Zhidong
Keyword(s):  
Organic Materials ◽  
Infection Incidence

scholarly journals Bloodstream Infection Incidence of Different Central Venous Catheters in Neonates: A Descriptive Cohort Study

2017 ◽  
Vol 5 ◽  
Author(s):  
Gerdina H. Dubbink-Verheij ◽  
Vincent Bekker ◽  
Iris C. M. Pelsma ◽  
Erik W. van Zwet ◽  
Vivianne E. H. J. Smits-Wintjens ◽  
...  
Keyword(s):  
Cohort Study ◽  
Bloodstream Infection ◽  
Central Venous Catheters ◽  
Central Venous ◽  
Infection Incidence

Infection Incidence and Types of Pathogens After Heart Transplantation: Institutional Experience

2014 ◽  
Vol 33 (4) ◽  
pp. S264
Author(s):  
M. Sargin ◽  
S.B. Erdogan ◽  
M. Tasdemir Mete ◽  
S. Akansel ◽  
A. Sensoy ◽  
...  
Keyword(s):  
Heart Transplantation ◽  
Infection Incidence ◽  
Institutional Experience

scholarly journals Interaction of Arsenophonus with Wolbachia in Nilaparvata lugens

2019 ◽  
Author(s):  
Huifang Guo ◽  
Na Wang ◽  
Hongtao Niu ◽  
Dongxiao Zhao ◽  
Zhichun Zhang
Keyword(s):  
Nilaparvata Lugens ◽  
The Other ◽  
Single Infection ◽  
Double Infection ◽  
Infection Incidence ◽  
Significant Difference ◽  
Geographic Populations ◽  
Different Populations ◽  
Symbiont Species ◽  
Antagonistic Interactions

Abstract Background Co-infection of endosymbionts in the same host is ubiquitous, and the interactions of the most common symbiont Wolbachia with other symbionts, including Spiroplasma et al., in invertebrate organisms have received increasing attention. However, the interactions between Wolbachia and Arsenophonus, another widely distributed symbiont in nature, are poorly understood. We tested the co-infection of Wolbachia and Arsenophonus in different populations of Nilaparvata lugens and investigated whether co-infection affected the population size of the symbionts in their host. Results A significant difference was observed in the co-infection incidence of Wolbachia and Arsenophonus among 5 populations of N. lugens from China, with nearly half of the individuals in the Zhenjiang population harbouring the two symbionts simultaneously, and the rate of occurrence was significantly higher than that of the other 4 populations. The Arsenophonus density in the superinfection line was significantly higher only in the Maanshan population compared with that of the single-infection line. Differences in the density of Wolbachia and Arsenophonus were found in all the tested double-infection lines, and the dominant symbiont species varied with the population only in the Nanjing population, with Arsenophonus the overall dominant symbiont. Conclusions Wolbachia and Arsenophonus could coexist in N. lugens, and the co-infection incidence varied with the geographic populations. Antagonistic interactions were not observed between Arsenophonus and Wolbachia, and the latter was the dominant symbiont in most populations.

scholarly journals THE EFFECT OF RED SESBANIA (SESBANIA GRANDIFLORA L.PERS) LEAVES EXTRACT ADMINISTRATION ON THE DECREASE OF LEUKOCYTE LEVEL IN POST-PARTUM MICE (MUS MUSCULUS) INFECTED WITH STREPTOCOCCUS AGALACTIAE

2018 ◽  
Vol 2 (01) ◽  
pp. 6-11
Author(s):  
HEPPY RINA MARDIANA ◽  
Surya Mustika Sari ◽  
YUFI ARIS LESTARI ◽  
ANIK SUPRIANI ◽  
NANIK NUR ROSYIDAH ◽  
...  
Keyword(s):  
Mortality Rate ◽  
Maternal Mortality ◽  
Mus Musculus ◽  
Streptococcus Agalactiae ◽  
Post Partum ◽  
Organ Injury ◽  
Control Group ◽  
Maternal Mortality Rate ◽  
Treatment Groups ◽  
Infection Incidence

Introduction: Maternal Mortality Rate (MMR) is indicator of public health degree. The cause of maternal mortality is postpartum infection. Streptococcus agalactiae bacterium contributes to postpartum infection incidence through vaginal or reproductive organ injury. Infection incidence is characterized with the increased level of leukocyte. The treatment of post-partum infection is done by administering antibiotics. Red sesbania leaves contains active substance that can inhibit the microbial growth. Objective: This research aimed to find out the effect of red sesbania leaves extract administration as antimicrobial agent to decrease leukocyte level in post partum mice (Mus musculus) infected with Streptococcus agalactiae. Method: The method employed was true experimental one with post test control group design, by dividing postpartum mice into 4 groups: one control group and three treatment groups at doses of 125 mg/kgBW, 250 mg/kgBW, and 500 mg/kgBW. All 0-12 hour post partum mice were inoculated with Streptococcus agalactiae bacterium. The administration of 1 ml red sesbania leaves extract in treatment group was conducted 2 hours after the bacterial administration at doses of 125 mg/kgBW, 250 mg/kgBW, and 500 mg/kgBW. Result: The result of analysis shows p < 0.05, indicating that the decrease of leukocyte level in all treatment groups (P1, P2, P3). Conclusion: Red sesbania leaves extract has antimicrobial activity that can reduce leukocyte level, thereby can be used as an alternative therapy to decrease maternal mortality rate due to post-partum infectin. KEYWORDS Red sesbania leaves extract, postpartum mice, leukocyte level, Streptococcus agalactiae.

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