Plasmodium ovale: Exploring an Atypical Presentation.

Malaria is an infection caused by five different Plasmodium species. The most common are is more rarely reported and mostly has a benign course. We present a case of a 40-year-old male with a six-day history of headaches, chills, and fever who was initially evaluated in our emergency room, from where he was discharged after a negative workup for malaria.

Diversity and evolution of tyrosinase enzymes involved in the adhesive systems of mussels and tubeworms.

Mussels and tubeworms have evolved similar adhesive systems to cope with the hydrodynamics of intertidal environments. Both secrete adhesive proteins rich in DOPA, a post-translationally modified amino acid playing essential roles in their permanent adhesion. DOPA is produced by the hydroxylation of tyrosine residues by tyrosinase enzymes, which can also oxidize it further into dopaquinone.

Early antiviral CD4+ and CD8+ T cells are associated with upper airway clearance of SARS-CoV-2.

T cells are involved in protective immunity against numerous viral infections. Data regarding functional roles of human T cells in SARS-CoV-2 (SARS2) viral clearance in primary COVID-19 are limited. To address this knowledge gap, we assessed samples for associations between SARS2 upper respiratory tract viral RNA levels and early virus-specific adaptive immune responses for 95 unvaccinated clinical trial participants with acute primary COVID-19 aged 18-86 years old, approximately half of whom were considered at high risk for progression to severe COVID-19.

Cochineal ( Costa) Pigment Extraction Assisted by Ultrasound and Microwave Techniques.

Carminic acid is a natural pigment typically found in several insect taxa, including specific insects such as "grana cochinilla fina" in Mexico ( Costa). Commercially, it is also referred to as carmine, which is a more concentrated solution presenting as at least 50% carminic acid. To date, this dye has been used in the pharmaceutical, food and cosmetic industries.