We report a computational study of the spreading dynamics of a viral infection in a complex (scale-free) network. The final epidemic size distribution (FESD) was found to be unimodal or bimodal depending on the value of the basic reproductive number 0 R . The FESDs occurred on time-scales long enough for intermediate-time epidemic size distributions (IESDs) to be important for control measures....

introduction mild intermittent asthma is common in children and viral infections are responsible for the majority of exacerbations. as leukotrienes are potent inflammatory mediators, some studies have shown that montelukast, a leukotriene receptor antagonist, may be effective on reduction of asthma symptom. to determine whether a short course of montelukast in asthmatic children with common col...

the population response of heliothis armigera larvae to nuclear polyhedrosis virus (npv) was investigated. the virus was introduced by permitting the larvae to feed on lettuce leaves. median lethal doses (ld50) were determined. the estimated ld50 values for the first, second, third, early, and late fourth larval instars were 5, 141, 1226, 5168 and 24553 polyhedra per larva respectively. in ...

introduction:blood-borne infectious agents are one of the main anxieties of blood transfusion organization in all countries. according to who, the blood healthy and blood safety is included ensuring and monitoring of quality and efficiency for all patients requiring blood transfusion. we at the current study intend that survey prevalence hiv ab, hcv ab, hbs ag among blood donors refer to the bl...

Background: The most common sexually transmitted diseases and the economic and social health problem throughout the world. However, vaccine coverage and antibiotic therapy and the development of programs to prevent and control major causes of acute and chronic diseases, pregnancy complications and infertility remains. Acute and chronic systemic viral infections can lead to infertility and perma...

The epidemiology of HIV infection and viral hepatitis among injection drug users (IDUs) is changing in western countries; reductions in the epidemic of blood-borne infections, such as HIV infection, and viral hepatitis among drug users are probably related to the generaliza‐ tion of harm-reduction interventions and to the treatment of both HIV/AIDS and substance abuse. Opioid substitution thera...

reye's syndrome is defined as fatty liver degeneration and acute encephalopathy following diffused abnormal mitochondrial activity. we reported a two year old girl admitted with lethargy and meningismus despite no evidence of blood sugar decrease, history of previous viral disease or drug use, complete tests showed reye syndrome as the final diagnosis. conservative protocols and treatment inclu...

The vastly different courses of the COVID-19 epidemic in China and rest world are investigated explained within two-component model. model is based on separate accounting for contribution to from two types immune response a viral infection - innate adaptive immunity. Any infected person becomes asymptomatic with probability (1−

background : trichomonas vaginalis is a pathogenic protozoon and may be contaminated with dsrna virus called trichomonas vaginalis virus (tvv). the viral infection is an important factor for its patho-genesis and sensitivity to metronidazole. the presence of tvv is associated with qualitative and quantitative expression of cysteine proteinases and surface immunogenic; p270. the purpose of this ...

Human Immunodeficiency Virus (HIV) infection and the resultant Acquired Immunodeficiency Syndrome (AIDS) epidemic are major global health challenges; hepatitis C virus (HCV) co-infection has made the HIV/AIDS epidemic even worse. Interleukin-27 (IL-27), a cytokine which inhibits HIV and HCV replication in vitro, associates with HIV infection and HIV/HCV co-infection in clinical settings. Howeve...