Hi @nightspray  thank you for your question. 
In terms of coronovirus, there is insufficient data to conclude that there is possibility of maternal to neonatal (fetus) transmission. And the same for SARS and MERS. 

Further,  in general, pregnant ladies are more prone to infections and more susceptible to complications that can arise from infections. 
For the case of these respiratory viruses (SARS, MERS, Influenza,  Covid , etc), the primary concern is that of pneumonia. 

Theoretically pregnant ladies have less respiratory reserve compared to another person of the same age who isn’t pregnant. As a result, this means they are less likely able to compensate if they were to develop pneumonia which causes a further decrease in lung capacity. Pregnancy also alters immunity which may increase risk and severity of infections. 

I would refer to pregnant ladies as an at risk population and would advise increase precautions such as hand hygiene/using mask/avoiding crowded areas especially during the third trimester. If you know of a positive contact you’ve been near to/went to high risk areas in Singapore and develop symptoms of respiratory illness, it would be good to visit a GP or ANE ASAP depending on severity. At present the most important thing is a high degree if suspicion rather than the type of symptoms one has. 

I hope this helps! 

Dear @Kevin . Thank you for your question! It does sound like a troubling time for you; I do hope that everything remains well for you and your family especially with the number of cases in America. 

I would say that it is appropriate for you to sleep in a spare bedroom. Beyond that ensure to always use gloves when you are working, wash your hands thoroughly during working hours as well as before you leave for home and before you enter your house. It would not be out of the question to even shower before going home. As it has been found that a small proportion of people can remain asymptomatic with the virus and still spread it around, it would not be out of the question to stay somewhere else entirely. It would be best to limit your contact with your wife and especially your younger child. Though the number of serious cases amongst children have not been very high, they are at higher risk given their physiological state (poorer reserves) compared to adults.  

These measures are necessary as COVID tends to linger on surfaces as they are unable to remain suspended in the air. Hence it is more likely for you to get it from touching an "infected surface" followed by touching your face or eyes/eating/sharing food or drinks with colleagues. I hope your company has thoroughly disinfected the premises as well. 

Wishing you and your family all the best!

Hi @Charlycat
For your interest, this article talks about a Belgian-Dutch study which suggested that  safe distance when running, biking and walking during COVID-19 times is further than the typical 1–2 meter as prescribed in different countries!
In summary, the article suggested:
“for walking the distance of people moving in the same direction in 1 line should be at least 4–5 meter, for running and slow biking it should be 10 meters and for hard biking at least 20 meters.”
https://medium.com/@jurgenthoelen/belgian-dutch-study-why-in-times-of-covid-19-you-can-not-walk-run-bike-close-to-each-other-a5df19c77d08

In addition, Paris has also started to ban daytime jogging as outlined in the article below:
https://www.channelnewsasia.com/news/world/paris-bans-daytime-jogging-to-fight-spread-of-covid-19-12618872?cid=FBcna

Henceforth, although the nature parks in Singapore are open air and safer than in confined spaces like indoor gyms, it is prudent for one to observe safe distancing measures to protect yourself and minimise travel to further curb the spread of covid-19. 

Hi @Fiqah thats an interesting question! However, no medications (including antiretrovirals) have been proven in clinical studies to prevent (as relevant to your question) nor treat the COVID-19  virus to date. In fact, patients with HIV can have impaired immune systems, and may be at increased risk of poorer outcomes if they catch the infection.

Hi @demarcus thats an interesting question, and yes - infection/inflammation in the nasal passage can irritate the nerves in the area leading to activation of the sneezing reflex. Inflammation is mediated in part by the release of histamines, which can occur with mast cell activation. As you said, the histamine then triggers the release of other downstream inflammatory chemicals which together lead to vasodilation (increased blood flow) and immune/white blood cells in the blood stream being activated to the area.

If you're still curious to find out more about mast cells and histamine, heres a resource with more information:  
https://www.frontiersin.org/articles/10.3389/fimmu.2015.00620/full#:~:text=In%20the%20skin%2C%20antigens%2C%20via,this%20can%20lead%20to%20angioedema.

Dear @waqashassn Throat discomfort is one of the symptoms of COVID-19 infection. You might wish to consult a doctor early and get a COVID-19 swab performed to rule out any COVID-19 infection. Hope this helps.