| CONTACT | ___ tracing describes efforts to identify the transmission of COVID-19 |
| RADIO | General name for sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners e |
| OPACITY | The degree of blocking the transmission of light (7) |
| SOUTHAFRICA | Country thought to be the source of a highly infectious variant of Covid-19 (5,6) |
| HIERARCHY | Elevated growth rate of Covid-19 is key, reportedly, in the order of things (9) |
| MASK | Something anyone could wear to stop to spread of COVID-19 |
| HEREDITY | The transmission of recognisable characteristics to descendants (8) |
| SEMBLANCE | Mask enables millions perhaps to tackle onset of Covid-19 (9) |
| WUHAN | City where the first cases of COVID-19 were reported |
| ACCESS | Approach in treatment of cases having first sign of Covid-19 (6) |
| CHOCTAW | During World War I, this Native American language was primarily used in the transmission of secret tactical messages and was instrumental in a successful surprise attack against the Germans. |
| TELEGRAPH | Any device or system that allows the transmission of information by coded signal over distance, or the device for transmitting printed information by wire or radio wave. (9) |
| INSULANTS | Things that reduce the transmission of heat or sound |
| WAVETHEORY | Physics principle regarding the transmission of light |
| CAMERA | ____ phone, mobile device enabling the transmission of digital images (6) |
| CORONA | The "CO" of COVID-19 |
| HITSSEND | Confirms the transmission of an email |
| BAT | Flying mammal and suspected cause of COVID-19 |
| HOLIDAY | What many missed because of Covid-19? Oh, daily flying (7) |
| PORCELAIN | China in hole over onset of Covid-19! Thousands ultimately wiped out, killed (9) |
