Fact Checks

Health authorities recommend face masks to curb coronavirus transmission
Facebook posts claim people should be unconcerned about others not wearing face masks during the coronavirus crisis as long as their own mask “works.” This is false; US health authorities advise people to wear masks to reduce the risk of transmitting the virus to others, and say they are most effective when they are widely used.

Drywall dust penetration does not mean face masks are ineffective against the coronavirus
Posts on Facebook claim face masks cannot be effective against the coronavirus because they do not stop drywall dust particles bigger than the virus from reaching a person’s face. This is false; experts say masks do not need to be 100 percent effective to help reduce the spread of the virus, and can curb transmission by blocking the larger respiratory droplets that contain it.

There is no evidence that 'snake grass' can kill cancer cells, experts say
Multiple Facebook posts claim a herbal drink made from a "snake grass" plant, also known as "clinacanthus nutans", can kill cancer cells "in 24 hours". The claim is misleading; health experts told AFP there is no evidence that snake grass can kill cancer cells.

No correlation between HPV vaccine Gardasil and cervical cancer rate, studies find
A claim the HPV vaccine Gardasil is the cause of a purported surge in cervical cancer and autoimmune disease cases in Australia has been shared hundreds of times in multiple posts on Instagram, Facebook and Twitter. The posts cite Australian government data, and say findings show “a cancer epidemic in Gardasil girls”. The claim, however, is false; experts say Australian cervical cancer statistics do not show an “epidemic” of cervical cancer; recent studies show Gardasil is not linked to any post-vaccine deaths or autoimmune diseases.