Here are six positive developments to remind us that there is hope in this crisis:

1. Therapeutic treatments, such as cloned antibodies, are showing to be effective both to treat and prevent COVID-19.

2.  Rapid, low-cost saliva tests for COVID-19 are being developed and could be a game-changer.

3. Universal mask-wearing is catching on.

4.  Consensus has emerged that airborne spread of the coronavirus is happening, and the World Health Organization and other organizations are now recommending the use of healthy building strategies such as higher ventilation, better filtration, and the use of air-cleaning devices.

5. Several studies suggest that past exposure to common-cold coronaviruses may help protect some people from COVID-19 infection.

6. Vaccine trials seem to be working and drug makers have said they may be able to deliver doses as early as October.

This are the six reason why we need to be optimistic during this pandemic.