la alegre pareja y su hijo pequeño obtuvieron resultados positivos en la prueba de embarazo. celebración del resultado positivo de la prueba de embarazo en el hogar - second test fotografías e imágenes de stock
los médicos le recetan un medicamento a un hombre mayor sentado con su esposa. - second test fotografías e imágenes de stock
ilustraciones, imágenes clip art, dibujos animados e iconos de stock de puntuación o medidores de velocidad uno a diez - second test
ilustraciones, imágenes clip art, dibujos animados e iconos de stock de número 2 icono rojo de medicina y del cuidado de la salud patrón - second test
ilustraciones, imágenes clip art, dibujos animados e iconos de stock de dos asistencia sanitaria y medicina patrón de botón rojo - second test
un letrero de "covid-19 drive-up testing" se encuentra en primer plano mientras los coches y otros vehículos esperan en una línea de prueba covid-19 (coronavirus) fuera de una clínica médica/hospital al aire libre (segunda ola) en segundo plano - second test fotografías e imágenes de stock
dos enfermeras que llevan batas, máscaras faciales quirúrgicas, guantes y escudos faciales hablan con los pacientes en sus coches en una línea de pruebas covid-19 (coronavirus) fuera de una clínica médica/hospital al aire libre (segunda ola) - second test fotografías e imágenes de stock
niño chino asiático escuchando los latidos del corazón de su hermana pequeña inclinando el abdomen de la madre uniendo tiempo con su esposo e hijo sentados en el banco del parque por la mañana - second test fotografías e imágenes de stock
People line up at a walk-up COVID-19 testing site in Miami Beach, Florida on November 17, 2020. - US biotech firm Moderna on November 16, 2020...
Chinese epidemic control workers wear protective suits as they perform nucleic acid swab tests for COVID-19 on citizens at a government testing site...
ilustraciones, imágenes clip art, dibujos animados e iconos de stock de texto colorido o multicolor, fórmula e=mc2 en una pizarra sucia como fondos negros vectoriales horizontales - second test
Chinese epidemic control worker wears a protective suit as she performs a nucleic acid swab test for COVID-19 on a man at a government testing site...
Dose of the Moderna COVID-19 Vaccine is prepared at a COVID-19 testing and vaccination site at the Harvard Street Neighborhood Health Center in...
Student speaks on the phone after opening their GCSE results at the City of London Academy on August 12, 2021 in London, England. Year 11 students...
Nurse holds the tube containing the photographer's throat and nose swab sample for a Covid-19 test at a hospital on the 2nd day of his 14-day...
People arrive for the new FDA emergency use and authorized IgG ll Antibody Test for vaccinated people, offered free of charge in Santa Fe Springs,...
Students open their GCSE results at the City of London Academy on August 12, 2021 in London, England. Year 11 students are collecting their GCSE...
Photo illustration of a rapid antigen test kit showing a negative result is seen during the second stage of a Covid-19 lockdown in Shanghai on April...
Testing site staff member conducts a temperature check at a drive-up testing site at the Orange County Fairgrounds in Costa Mesa, California,...
Health worker is seen marking on kits in preparation for the rapid antigen test in New Delhi. With India being the world's second most coronavirus...
ilustraciones, imágenes clip art, dibujos animados e iconos de stock de prueba de ceguera de color - second test
mujer embarazada recibiendo su segunda dosis de una vacuna contra el covid-19 - second test fotografías e imágenes de stock
Students open their GCSE results at the City of London Academy on August 12, 2021 in London, England. Year 11 students are collecting their GCSE...
Young student in Ms. McFaul''s second grade Early Intervention Bilingual class looks closely at a math exam during a summer school June 3, 2001 at...
Sophie Thomas celebrates after opening her GCSE results at Ffynone House School on August 12, 2021 in Swansea, United Kingdom. Year 11 students are...
Doctor Verzé performs a medical check-up on Covid-19 home patient Manfredi Tozzi on November 19, 2020 in Florence, Italy. Italy's Special Continuity...
Sign for COVID-19 testing in Terminal B at Los Angeles International Airport in Los Angeles, California, U.S., on Sunday, Nov. 23, 2020. More than 1...
Medical worker takes a nasal swab sample from a student to test for COVID-19 at the Brooklyn Health Medical Alliance urgent care pop up testing site...
Chinese epidemic control worker wears a protective suit as she performs a nucleic acid swab test for COVID-19 on a woman at a government testing site...
Unit 731 was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that undertook lethal human...
Unit 731 was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that undertook lethal human...
Unit 731 was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that undertook lethal human...
Student speaks during a high-school exam inside the Liceo Classico Massimo D'Azeglio on June 16, 2021 in Turin, Italy. High-school graduation exams...
Sign is displayed at a drive-thru COVID-19 testing site amid a surge of coronavirus cases in the city on November 18, 2020 in El Paso, Texas. Texas...
Claire Altieri , second from left, senior associate of Concentric by Ginkgo, Ryan Kramer, senior training associate with Concentric by Ginkgo, and...
An RN administers a second booster to a patient at a COVID-19 testing and vaccination site at the Harvard Street Neighborhood Health Center in...
Sign for Covid-19 test in the airport terminal Kraków John Paul II International Airport KRK known as Krakow Balice airport. Check-in desks, arrival...
Rev. Felicia Bagneris is testing for covid19 at the historic First African Methodist Episcopal Church on Saturday, Jan. 29, 2022 in Los Angeles, CA....
Micheal Federico, right, gives Rosie Robinson, left, a vaccinination at the historic First African Methodist Episcopal Church on Saturday, Jan. 29,...
Sophie Thomas opens her GCSE results with teachers at Ffynone House School on August 12, 2021 in Swansea, United Kingdom. Year 11 students are...
Medical worker takes a nasal swab sample from a student to test for COVID-19 at the Brooklyn Health Medical Alliance urgent care pop up testing site...
Page of diagrams from Newton's 'Opticks' . Sir Isaac Newton discovered that by refracting light through a prism white light was dispersed into its...
Pupils at Kingsmead Primary School partake in a science experiment, making their model volcano erupt with a baking soda and vinegar mixture. The...
Urbana, Illinois: Professor Donald W. Kerst University of Illinois physicist, has been presented the Cyrus B. Comstock Award of the National Academy...
Students work together in teacher Daisy Moran's second-grade bilingual class during summer school at Mozart School July 2, 2003 in Chicago, Illinois....
Second semester students in the nutrition technology department seen here working on acid base volumetric analysis at the Beuth technical college on...
ilustraciones, imágenes clip art, dibujos animados e iconos de stock de daltonism de prueba - second test
