Healthcare Workers Vaccinating Healthcare Workers: Because of their contact with patients or infective material from patients, health-care workers are at risk for exposure to and possible transmission of vaccine-preventable diseases. Beyond hospitals, these recommendations are going to apply to those in private physicians’ offices, nursing homes, schools, and laboratories, and to
HeLa cells are the oldest and most commonly used human cell line used in making human research. Henrietta Lacks died in 1951 of an aggressive adenocarcinoma of the cervix. A tissue biopsy obtained for diagnostic evaluation yielded additional tissue for Dr. George O. Gey’s tissue culture laboratory at Johns Hopkins University. The cells, called
Hepatitis A is a viral infection that attacks the liver, causing asymptomatic-to-severe illness.Most often, HAV infection produces a self-limited illness that does NOT result in chronic infection or chronic liver disease. Infected adults develop signs and symptoms of illness more often than children. It is usually transmitted from person-to-person by ingestion of
Hepatitis C is one of several viruses that can cause viral hepatitis. The virus is unrelated to the other common causes hepatitis, hepatitis A and B viruses. There are at least six different hepatitis C genotypes or strains. Genotyping is used to guide treatment because some hepatitis C genotypes need
Herd immunity is a theory put forth describing immunity through vaccinating a significant portion of a population (called “the herd”). Since not everyone who receives a vaccine develops an antibody, it is presumed that if most are vaccinated, the “herd effect” will protect those without an antibody from getting
Haemophilus influenzae type b (Hib) has been commonly associated with otitis media, sinusitis, bronchitis and other respiratory tract disorders. Prior to the development of the HiB vaccine, this bacteria caused meningitis in children under 2 years of age. The case-fatality rate of meningitis is about 5%. Haemophilus influenzae type
While treatment for HIV infection and AIDS has dramatically improved over the last 30 years, it is no substitute for prevention. Current HIV medications are very expensive, and there are also many side effects. Sometimes people develop drug resistance and have to change the regimen of pills they take. Access
Human papillomavirus (HPV) is a viral infection that passes between people through skin-to-skin contact. There are more than 140 varieties of HPV. The infection is so common that most sexually active people will be infected at some point. In fact, the CDC states that HPV is the most common sexually
Human Cells This Category includes information about Human Cells (historically from aborted fetal tissue) used for the production of vaccines. Cell substrates are the actual cells used to produce vaccines. Cell substrates can be of human or animal origin (including insect) and/or unicellular organisms, such as bacteria or yeast. Cell substrates are categorized as primary
July 29, 2020 – Problems with the analysis in “Treatment with Hydroxychloroquine, Azithromycin and Combination in Patients Hospitalized with COVID-19” “In this observational study the patients were deliberately assigned to the treatment protocols based on their underlying medical conditions. This introduces a bias into the study, and as with all