Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS coronavirus 2, or SARS-CoV-2), related to the SARS virus. 3D Illustration.

Infant schoolchildren waving their arms in the air and clapping during a lesson, close up

Female infant school teacher at table with three children using constructing blocks, selective focus

Coming Soon Text Typography Reveal From Golden Firework Crackers Particles Night Sky 4k Background. Greeting card, Celebration, Party, Invitation, Gift, Event, Message, Holiday, Wish, Festival

Business people in formalwear are focused on discussion talking in cafe negotiating contract listening to partners. Attention, negotiations and entrepreneurship concept.

Nerd funny guy shouting an announcement message using a megaphone, marketing and communication concept

Annoyed man screaming into megaphone, trying to convey his opinion to others

attention announcement on the LED display

Serious two years old curly hair baby girl watching tv at home

Young male and wrinkled hands comforting and stroking each other outdoor. Grandson and grandmother spending time together outside. Concept of care and love. Close up Side view Slow motion

Portrait of pretty African American woman raising sunglasses and feeling worried looking at camera with astonished face. Negative reaction and stylish youth concept.

Close-up of a man in gloves install glass and examines samples in a microscope

No entry or do not enter traffic sign on a pole in the city street. In the background, foliage of trees and blue clear sky.

Audience Listen to Female Speaker at Expo Center. Business Presentation. Group of People at Science Convention. Future Entertainment, Coaching and Education Concept Footage Shot in 4K

Man Public Narrator Talking to Crowded Audience. Back View of Young Bold Speaker Handing Dimpoma at Conference Hall Area. Rewarding or Graduation Concept Footage Shot Full HD 1080p

Smiling mother pinching irritated son cheeks, adult child care, overprotection

Woman looking at small gift box, while husband giving mother big presents

Male director listening to talking partner, work meeting, ignoring colleague

Shocked wife looking at mother-in-law wiping husbands mouth, overprotection

Young white schoolboy sitting in class listening to a story and gesturing, selective focus

Young female infant school teacher showing a book to kids in a classroom, close up

Female teacher helping kids working with construction blocks in a primary school classroom

Young schoolgirl wearing uniform working at a desk in an infant school class, close up, low angle

A schoolboy constructing a toy in a primary school classroom, close up, focus on foreground

Infant school kids sitting on bean bags in a comfortable corner listening their teacher, close up

Female infant school teacher working one on one with a young mixed race schoolgirl using tablet, close up

Mixed race schoolgirl drawing in an infant school classroom choosing a pencil, selective focus

White infant school boy using educational construction toys with his classmates, close up

Female infant school teacher explaining a worksheet to her pupils in classroom, close up

Close up of mother’s hands doing up her baby’s onesie after changing him, baby smiling

Smiling social worker reading book senior retired lady, generations togetherness

Young Hispanic man showing something and looking shocked

Pickpocket team stealing money from woman pocket in crowded city, dexterity

Unrecognizable curly brunette woman showing HUD hologram with text Agile. Girl uses technology of the future on a mobile screen

Annoyed woman looking for parking lot, attentive driver keeping to road rules

Mother communicates with son after school, attention to child, proper upbringing

Frustrated woman driving car and drinking wine, suicide thoughts and crisis

Lady drinking wine and driving car, relieving stress, alcohol addicted person

LONDON - SEPTEMBER 27, 2019: Pedestrian crossing red man stop light signal on a busy London street as Double Decker buses pass by

Smiling volunteer presenting birthday cake to senior pensioner in nursing home

Thoughtful businessman in suit listening to company partner, deal negotiation

Expressive young man screaming and shouting over vibrant background. Portrait of handsome person.

A schoolgirl sitting at a table in a primary school class drawing, front view, selective focus

Gorgeous young woman sitting by the bartender stand drinking a cocktail - turning around and turning back

Young woman sitting by the bartender stand - a man comes to her and they start talking

A bewitching couple having a date in the bar - sitting by stand and laughing

A bewitching couple having a date in the bar - sitting by stand and talking

A man meeting a girl in the bar - standing by the stand and start talking with a gorgeous young woman - drinking cocktails

Unrecognizable woman working with HUD hologram of a smart watch with text Agile. Female hands with future holographic technology in wrist watches

Happy parenting concept. Happy family. Summer holidays.

New education approach. Communicating concept. Mother and child.

Tutor explains task. Lecture explaining theory scheme. Teacher at school university college. Infographics background. Visual representation to represent information, data. Education abroad. Education

4K Terrorism Ahead Warning Rusty Sign under Clouds Timelapse

4K Rabies Warning Sign under Clouds Timelapse

4K Neo Nazis Warning Sign under Clouds Timelapse

4K Leper Warning Sign under Clouds Timelapse

4K Influenza Warning Rusty Sign under Clouds Timelapse

4K Fascists Rusty Sign under Clouds Timelapse

4K High Radiation Area Rusty Sign under Clouds Timelapse

4K Marburg Virus Warning Sign under Clouds Timelapse

4K Uncertainty Ahead Warning Sign under Clouds Timelapse

4K Minefield Ahead Warning Rusty Sign under Clouds Timelapse

4K Rotavirus Warning Sign under Clouds Timelapse

XIAN CHINA-APR 15 2012: People enjoy strolling through the park and admiring the flowers

Boy sitting in the grass outside. He is wearing a red shirt side view

Flat template with bell alert and laptop on blue background for mobile app design. Application interface. Comment sign symbol. Motion graphics

We want your feedback. Badge, stamp with happy and unhappy faces icons. Motion graphics

Yellow megaphone with Your opinion matters concept. Motion graphics

Spinning toy, spinner, boy in the hands of a fair-haired boy. A variety of patterns of whirling around a single point.

Senior lady showing syringe with insulin, diabetes treatment, half-face closeup

Close up of millennial female infant school teacher sitting with kids in a drawing class, side view

Elevated view of female primary school at a table with schoolchildren using tablet computers

Young female infant school teacher showing a book to kids in a classroom, raising hands to speak

Lack of fathers attention, child playing game on tablet while dad using laptop

Conflict between wife and husband working at home, indifference, break-up

Sad daughter talking to busy father ignoring her, lack of parental attention

Lopburi - August 24,2019 : Unidentified people visit the ruins of Nong-Bua temple under the water of Pasak Jolasid Dam after the water reduced in Lopburi, Thailand

Blond female sitting in car and feeling strong headache, taking drugs, medicine

Girl walking up stairs, looking back if someone chasing her, caution, attention

Automobile driver talking on phone, suffering from strong headache, stress

Side view of cute children sitting and playing on floor in kitchen near fridge

Top view of funny kid sitting on floor holding green childish potty and looking at camera at home and plays

From above shot of little adorable boy sitting in brown carriage and looking away at street or in camera in a yellow hat and boots. Child smiling at the camera

Megaphone with We've moving. motion graphics

From above of cute little girl with ponytails in casual wear waveing hands standing near wooden wardrobe while playing at home

dog wearing a face mask to protect herself from infection or air pollution, virus disease animal concept blue background

We want your feedback megaphone banner in 3D style. Motion graphics

An elderly man using cell phone in a taxi. He is texting, checking mails, chats or the news online. Night.

Black silhuettes of two males in keikogi or kimono showing aikido using tanto. Isolated, white. Slow motion. Close up.

Silhouettes, guys performing aikido using bokken. Isolated, white. Slow motion. Close up.

Athlete and woman practicing aikido, isolated on white. Slow motion.

Black silhuettes of man and woman showing aikido techniques. Isolated on white. Slow motion.

Black silhuettes of two males in keikogi or kimono demonstrating aikido techniques. Isolated, white. Slow motion. Close up.

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