The cucumber mosaic virus (CMV) 2b viral suppressor of RNA silencing (VSR) inhibits host responses to jasmonic acid (JA), a chemical signal regulating resistance to insects. Previous experiments with a CMV subgroup IA strain and its 2b gene deletion mutant suggested that VSRs might neutralize aphid (Myzus persicae) resistance by inhibiting JA-regulated gene expression. To further investigate th...

The antigenicity of several well established Moloney virus-induced transplantable leukemias was studied. Resistance was developed by pretreatment of isologous mice with x-radiated tumor tissue. In general, the neoplasms grew more rapidly in preirradiated mice (400 r) than in normal mice, and at low inoculum concentrations a higher percentage of tumors was observed in the pre-irradiated animals....

1. Hepatitis B virus variants with antiviral drug-resistant mutations and/or hepatitis B immune globulin-resistant mutations are the main cause of hepatitis B virus reinfections post-liver transplant. 2. Early diagnosis of antiviral drug resistance and prompt initiation of rescue therapy are important in preventing hepatitis flares and hepatic decompensation. 3. Virologic breakthrough is the fi...

Amino acid substitutions in influenza virus neuraminidase (NA) that cause resistance to inhibitors (NAI) generally result attenuation. However, viruses may acquire secondary the NA and hemagglutinin (HA) proteins can restore viral fitness. To assess which extent this happens, emergence of NAI – potentially compensatory was quantified immunocompetent individuals included Influenza Resistance Inf...

Abstract The Corona Virus Disease 2019 pandemic is an event of the spread corona virus around world. LIPI researchers stated that air temperature and humidity can affect virus. Coronavirus resistance decreases in hot temperatures high humidity. Based on problem retard virus, a study was carried out effect material thermal conditions buildings to reduce Thermal measurements are 2-story residenti...

The rabbit myxomatosis is caused by a Leporipoxvirus from the Poxviridae family. Extremely virulent strains kill the animals and no immunological reactions can be proved. Surviving individuals gain adaptive immunity that protects them from reinfection. In time virus is naturally attenuated and the resistance in the population is increased. There is not enough research about Tand B-lymphocyte im...

In natural populations, genetic variation affects resistance to disease. Knowing how much variation exists, and understanding the genetic architecture of this variation, is important for medicine, for agriculture, and for understanding evolutionary processes. To investigate the extent and nature of genetic variation affecting resistance to pathogens, we are studying a tractable model system: Dr...